3 * Copyright (C) 2009-2010 Red Hat Inc.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 (* This script generates a large amount of code and documentation for
21 * all the daemon actions.
23 * To add a new action there are only two files you need to change,
24 * this one to describe the interface (see the big table of
25 * 'daemon_functions' below), and daemon/<somefile>.c to write the
28 * After editing this file, run it (./src/generator.ml) to regenerate
29 * all the output files. 'make' will rerun this automatically when
30 * necessary. Note that if you are using a separate build directory
31 * you must run generator.ml from the _source_ directory.
33 * IMPORTANT: This script should NOT print any warnings. If it prints
34 * warnings, you should treat them as errors.
37 * (1) In emacs, install tuareg-mode to display and format OCaml code
38 * correctly. 'vim' comes with a good OCaml editing mode by default.
39 * (2) Read the resources at http://ocaml-tutorial.org/
44 #directory "+xml-light";;
45 #load "xml-light.cma";;
50 type style = ret * args
52 (* "RErr" as a return value means an int used as a simple error
53 * indication, ie. 0 or -1.
57 (* "RInt" as a return value means an int which is -1 for error
58 * or any value >= 0 on success. Only use this for smallish
59 * positive ints (0 <= i < 2^30).
63 (* "RInt64" is the same as RInt, but is guaranteed to be able
64 * to return a full 64 bit value, _except_ that -1 means error
65 * (so -1 cannot be a valid, non-error return value).
69 (* "RBool" is a bool return value which can be true/false or
74 (* "RConstString" is a string that refers to a constant value.
75 * The return value must NOT be NULL (since NULL indicates
78 * Try to avoid using this. In particular you cannot use this
79 * for values returned from the daemon, because there is no
80 * thread-safe way to return them in the C API.
82 | RConstString of string
84 (* "RConstOptString" is an even more broken version of
85 * "RConstString". The returned string may be NULL and there
86 * is no way to return an error indication. Avoid using this!
88 | RConstOptString of string
90 (* "RString" is a returned string. It must NOT be NULL, since
91 * a NULL return indicates an error. The caller frees this.
95 (* "RStringList" is a list of strings. No string in the list
96 * can be NULL. The caller frees the strings and the array.
98 | RStringList of string
100 (* "RStruct" is a function which returns a single named structure
101 * or an error indication (in C, a struct, and in other languages
102 * with varying representations, but usually very efficient). See
103 * after the function list below for the structures.
105 | RStruct of string * string (* name of retval, name of struct *)
107 (* "RStructList" is a function which returns either a list/array
108 * of structures (could be zero-length), or an error indication.
110 | RStructList of string * string (* name of retval, name of struct *)
112 (* Key-value pairs of untyped strings. Turns into a hashtable or
113 * dictionary in languages which support it. DON'T use this as a
114 * general "bucket" for results. Prefer a stronger typed return
115 * value if one is available, or write a custom struct. Don't use
116 * this if the list could potentially be very long, since it is
117 * inefficient. Keys should be unique. NULLs are not permitted.
119 | RHashtable of string
121 (* "RBufferOut" is handled almost exactly like RString, but
122 * it allows the string to contain arbitrary 8 bit data including
123 * ASCII NUL. In the C API this causes an implicit extra parameter
124 * to be added of type <size_t *size_r>. The extra parameter
125 * returns the actual size of the return buffer in bytes.
127 * Other programming languages support strings with arbitrary 8 bit
130 * At the RPC layer we have to use the opaque<> type instead of
131 * string<>. Returned data is still limited to the max message
134 | RBufferOut of string
136 and args = argt list (* Function parameters, guestfs handle is implicit. *)
138 (* Note in future we should allow a "variable args" parameter as
139 * the final parameter, to allow commands like
140 * chmod mode file [file(s)...]
141 * This is not implemented yet, but many commands (such as chmod)
142 * are currently defined with the argument order keeping this future
143 * possibility in mind.
146 | String of string (* const char *name, cannot be NULL *)
147 | Device of string (* /dev device name, cannot be NULL *)
148 | Pathname of string (* file name, cannot be NULL *)
149 | Dev_or_Path of string (* /dev device name or Pathname, cannot be NULL *)
150 | OptString of string (* const char *name, may be NULL *)
151 | StringList of string(* list of strings (each string cannot be NULL) *)
152 | DeviceList of string(* list of Device names (each cannot be NULL) *)
153 | Bool of string (* boolean *)
154 | Int of string (* int (smallish ints, signed, <= 31 bits) *)
155 | Int64 of string (* any 64 bit int *)
156 (* These are treated as filenames (simple string parameters) in
157 * the C API and bindings. But in the RPC protocol, we transfer
158 * the actual file content up to or down from the daemon.
159 * FileIn: local machine -> daemon (in request)
160 * FileOut: daemon -> local machine (in reply)
161 * In guestfish (only), the special name "-" means read from
162 * stdin or write to stdout.
167 (* Opaque buffer which can contain arbitrary 8 bit data.
168 * In the C API, this is expressed as <char *, int> pair.
169 * Most other languages have a string type which can contain
170 * ASCII NUL. We use whatever type is appropriate for each
172 * Buffers are limited by the total message size. To transfer
173 * large blocks of data, use FileIn/FileOut parameters instead.
174 * To return an arbitrary buffer, use RBufferOut.
180 | ProtocolLimitWarning (* display warning about protocol size limits *)
181 | DangerWillRobinson (* flags particularly dangerous commands *)
182 | FishAlias of string (* provide an alias for this cmd in guestfish *)
183 | FishAction of string (* call this function in guestfish *)
184 | NotInFish (* do not export via guestfish *)
185 | NotInDocs (* do not add this function to documentation *)
186 | DeprecatedBy of string (* function is deprecated, use .. instead *)
187 | Optional of string (* function is part of an optional group *)
189 (* You can supply zero or as many tests as you want per API call.
191 * Note that the test environment has 3 block devices, of size 500MB,
192 * 50MB and 10MB (respectively /dev/sda, /dev/sdb, /dev/sdc), and
193 * a fourth ISO block device with some known files on it (/dev/sdd).
195 * Note for partitioning purposes, the 500MB device has 1015 cylinders.
196 * Number of cylinders was 63 for IDE emulated disks with precisely
197 * the same size. How exactly this is calculated is a mystery.
199 * The ISO block device (/dev/sdd) comes from images/test.iso.
201 * To be able to run the tests in a reasonable amount of time,
202 * the virtual machine and block devices are reused between tests.
203 * So don't try testing kill_subprocess :-x
205 * Between each test we blockdev-setrw, umount-all, lvm-remove-all.
207 * Don't assume anything about the previous contents of the block
208 * devices. Use 'Init*' to create some initial scenarios.
210 * You can add a prerequisite clause to any individual test. This
211 * is a run-time check, which, if it fails, causes the test to be
212 * skipped. Useful if testing a command which might not work on
213 * all variations of libguestfs builds. A test that has prerequisite
214 * of 'Always' is run unconditionally.
216 * In addition, packagers can skip individual tests by setting the
217 * environment variables: eg:
218 * SKIP_TEST_<CMD>_<NUM>=1 SKIP_TEST_COMMAND_3=1 (skips test #3 of command)
219 * SKIP_TEST_<CMD>=1 SKIP_TEST_ZEROFREE=1 (skips all zerofree tests)
221 type tests = (test_init * test_prereq * test) list
223 (* Run the command sequence and just expect nothing to fail. *)
226 (* Run the command sequence and expect the output of the final
227 * command to be the string.
229 | TestOutput of seq * string
231 (* Run the command sequence and expect the output of the final
232 * command to be the list of strings.
234 | TestOutputList of seq * string list
236 (* Run the command sequence and expect the output of the final
237 * command to be the list of block devices (could be either
238 * "/dev/sd.." or "/dev/hd.." form - we don't check the 5th
239 * character of each string).
241 | TestOutputListOfDevices of seq * string list
243 (* Run the command sequence and expect the output of the final
244 * command to be the integer.
246 | TestOutputInt of seq * int
248 (* Run the command sequence and expect the output of the final
249 * command to be <op> <int>, eg. ">=", "1".
251 | TestOutputIntOp of seq * string * int
253 (* Run the command sequence and expect the output of the final
254 * command to be a true value (!= 0 or != NULL).
256 | TestOutputTrue of seq
258 (* Run the command sequence and expect the output of the final
259 * command to be a false value (== 0 or == NULL, but not an error).
261 | TestOutputFalse of seq
263 (* Run the command sequence and expect the output of the final
264 * command to be a list of the given length (but don't care about
267 | TestOutputLength of seq * int
269 (* Run the command sequence and expect the output of the final
270 * command to be a buffer (RBufferOut), ie. string + size.
272 | TestOutputBuffer of seq * string
274 (* Run the command sequence and expect the output of the final
275 * command to be a structure.
277 | TestOutputStruct of seq * test_field_compare list
279 (* Run the command sequence and expect the final command (only)
282 | TestLastFail of seq
284 and test_field_compare =
285 | CompareWithInt of string * int
286 | CompareWithIntOp of string * string * int
287 | CompareWithString of string * string
288 | CompareFieldsIntEq of string * string
289 | CompareFieldsStrEq of string * string
291 (* Test prerequisites. *)
293 (* Test always runs. *)
296 (* Test is currently disabled - eg. it fails, or it tests some
297 * unimplemented feature.
301 (* 'string' is some C code (a function body) that should return
302 * true or false. The test will run if the code returns true.
306 (* As for 'If' but the test runs _unless_ the code returns true. *)
309 (* Some initial scenarios for testing. *)
311 (* Do nothing, block devices could contain random stuff including
312 * LVM PVs, and some filesystems might be mounted. This is usually
317 (* Block devices are empty and no filesystems are mounted. *)
320 (* /dev/sda contains a single partition /dev/sda1, with random
321 * content. /dev/sdb and /dev/sdc may have random content.
326 (* /dev/sda contains a single partition /dev/sda1, which is formatted
327 * as ext2, empty [except for lost+found] and mounted on /.
328 * /dev/sdb and /dev/sdc may have random content.
334 * /dev/sda1 (is a PV):
335 * /dev/VG/LV (size 8MB):
336 * formatted as ext2, empty [except for lost+found], mounted on /
337 * /dev/sdb and /dev/sdc may have random content.
341 (* /dev/sdd (the ISO, see images/ directory in source)
346 (* Sequence of commands for testing. *)
348 and cmd = string list
350 (* Note about long descriptions: When referring to another
351 * action, use the format C<guestfs_other> (ie. the full name of
352 * the C function). This will be replaced as appropriate in other
355 * Apart from that, long descriptions are just perldoc paragraphs.
358 (* Generate a random UUID (used in tests). *)
360 let chan = open_process_in "uuidgen" in
361 let uuid = input_line chan in
362 (match close_process_in chan with
365 failwith "uuidgen: process exited with non-zero status"
366 | WSIGNALED _ | WSTOPPED _ ->
367 failwith "uuidgen: process signalled or stopped by signal"
371 (* These test functions are used in the language binding tests. *)
373 let test_all_args = [
376 StringList "strlist";
384 let test_all_rets = [
385 (* except for RErr, which is tested thoroughly elsewhere *)
386 "test0rint", RInt "valout";
387 "test0rint64", RInt64 "valout";
388 "test0rbool", RBool "valout";
389 "test0rconststring", RConstString "valout";
390 "test0rconstoptstring", RConstOptString "valout";
391 "test0rstring", RString "valout";
392 "test0rstringlist", RStringList "valout";
393 "test0rstruct", RStruct ("valout", "lvm_pv");
394 "test0rstructlist", RStructList ("valout", "lvm_pv");
395 "test0rhashtable", RHashtable "valout";
398 let test_functions = [
399 ("test0", (RErr, test_all_args), -1, [NotInFish; NotInDocs],
401 "internal test function - do not use",
403 This is an internal test function which is used to test whether
404 the automatically generated bindings can handle every possible
405 parameter type correctly.
407 It echos the contents of each parameter to stdout.
409 You probably don't want to call this function.");
413 [(name, (ret, [String "val"]), -1, [NotInFish; NotInDocs],
415 "internal test function - do not use",
417 This is an internal test function which is used to test whether
418 the automatically generated bindings can handle every possible
419 return type correctly.
421 It converts string C<val> to the return type.
423 You probably don't want to call this function.");
424 (name ^ "err", (ret, []), -1, [NotInFish; NotInDocs],
426 "internal test function - do not use",
428 This is an internal test function which is used to test whether
429 the automatically generated bindings can handle every possible
430 return type correctly.
432 This function always returns an error.
434 You probably don't want to call this function.")]
438 (* non_daemon_functions are any functions which don't get processed
439 * in the daemon, eg. functions for setting and getting local
440 * configuration values.
443 let non_daemon_functions = test_functions @ [
444 ("launch", (RErr, []), -1, [FishAlias "run"; FishAction "launch"],
446 "launch the qemu subprocess",
448 Internally libguestfs is implemented by running a virtual machine
451 You should call this after configuring the handle
452 (eg. adding drives) but before performing any actions.");
454 ("wait_ready", (RErr, []), -1, [NotInFish],
456 "wait until the qemu subprocess launches (no op)",
458 This function is a no op.
460 In versions of the API E<lt> 1.0.71 you had to call this function
461 just after calling C<guestfs_launch> to wait for the launch
462 to complete. However this is no longer necessary because
463 C<guestfs_launch> now does the waiting.
465 If you see any calls to this function in code then you can just
466 remove them, unless you want to retain compatibility with older
467 versions of the API.");
469 ("kill_subprocess", (RErr, []), -1, [],
471 "kill the qemu subprocess",
473 This kills the qemu subprocess. You should never need to call this.");
475 ("add_drive", (RErr, [String "filename"]), -1, [FishAlias "add"],
477 "add an image to examine or modify",
479 This function adds a virtual machine disk image C<filename> to the
480 guest. The first time you call this function, the disk appears as IDE
481 disk 0 (C</dev/sda>) in the guest, the second time as C</dev/sdb>, and
484 You don't necessarily need to be root when using libguestfs. However
485 you obviously do need sufficient permissions to access the filename
486 for whatever operations you want to perform (ie. read access if you
487 just want to read the image or write access if you want to modify the
490 This is equivalent to the qemu parameter
491 C<-drive file=filename,cache=off,if=...>.
492 C<cache=off> is omitted in cases where it is not supported by
493 the underlying filesystem.
495 Note that this call checks for the existence of C<filename>. This
496 stops you from specifying other types of drive which are supported
497 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
498 the general C<guestfs_config> call instead.");
500 ("add_cdrom", (RErr, [String "filename"]), -1, [FishAlias "cdrom"],
502 "add a CD-ROM disk image to examine",
504 This function adds a virtual CD-ROM disk image to the guest.
506 This is equivalent to the qemu parameter C<-cdrom filename>.
514 This call checks for the existence of C<filename>. This
515 stops you from specifying other types of drive which are supported
516 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
517 the general C<guestfs_config> call instead.
521 If you just want to add an ISO file (often you use this as an
522 efficient way to transfer large files into the guest), then you
523 should probably use C<guestfs_add_drive_ro> instead.
527 ("add_drive_ro", (RErr, [String "filename"]), -1, [FishAlias "add-ro"],
529 "add a drive in snapshot mode (read-only)",
531 This adds a drive in snapshot mode, making it effectively
534 Note that writes to the device are allowed, and will be seen for
535 the duration of the guestfs handle, but they are written
536 to a temporary file which is discarded as soon as the guestfs
537 handle is closed. We don't currently have any method to enable
538 changes to be committed, although qemu can support this.
540 This is equivalent to the qemu parameter
541 C<-drive file=filename,snapshot=on,if=...>.
543 Note that this call checks for the existence of C<filename>. This
544 stops you from specifying other types of drive which are supported
545 by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
546 the general C<guestfs_config> call instead.");
548 ("config", (RErr, [String "qemuparam"; OptString "qemuvalue"]), -1, [],
550 "add qemu parameters",
552 This can be used to add arbitrary qemu command line parameters
553 of the form C<-param value>. Actually it's not quite arbitrary - we
554 prevent you from setting some parameters which would interfere with
555 parameters that we use.
557 The first character of C<param> string must be a C<-> (dash).
559 C<value> can be NULL.");
561 ("set_qemu", (RErr, [String "qemu"]), -1, [FishAlias "qemu"],
563 "set the qemu binary",
565 Set the qemu binary that we will use.
567 The default is chosen when the library was compiled by the
570 You can also override this by setting the C<LIBGUESTFS_QEMU>
571 environment variable.
573 Setting C<qemu> to C<NULL> restores the default qemu binary.");
575 ("get_qemu", (RConstString "qemu", []), -1, [],
576 [InitNone, Always, TestRun (
578 "get the qemu binary",
580 Return the current qemu binary.
582 This is always non-NULL. If it wasn't set already, then this will
583 return the default qemu binary name.");
585 ("set_path", (RErr, [String "searchpath"]), -1, [FishAlias "path"],
587 "set the search path",
589 Set the path that libguestfs searches for kernel and initrd.img.
591 The default is C<$libdir/guestfs> unless overridden by setting
592 C<LIBGUESTFS_PATH> environment variable.
594 Setting C<path> to C<NULL> restores the default path.");
596 ("get_path", (RConstString "path", []), -1, [],
597 [InitNone, Always, TestRun (
599 "get the search path",
601 Return the current search path.
603 This is always non-NULL. If it wasn't set already, then this will
604 return the default path.");
606 ("set_append", (RErr, [OptString "append"]), -1, [FishAlias "append"],
608 "add options to kernel command line",
610 This function is used to add additional options to the
611 guest kernel command line.
613 The default is C<NULL> unless overridden by setting
614 C<LIBGUESTFS_APPEND> environment variable.
616 Setting C<append> to C<NULL> means I<no> additional options
617 are passed (libguestfs always adds a few of its own).");
619 ("get_append", (RConstOptString "append", []), -1, [],
620 (* This cannot be tested with the current framework. The
621 * function can return NULL in normal operations, which the
622 * test framework interprets as an error.
625 "get the additional kernel options",
627 Return the additional kernel options which are added to the
628 guest kernel command line.
630 If C<NULL> then no options are added.");
632 ("set_autosync", (RErr, [Bool "autosync"]), -1, [FishAlias "autosync"],
636 If C<autosync> is true, this enables autosync. Libguestfs will make a
637 best effort attempt to run C<guestfs_umount_all> followed by
638 C<guestfs_sync> when the handle is closed
639 (also if the program exits without closing handles).
641 This is disabled by default (except in guestfish where it is
642 enabled by default).");
644 ("get_autosync", (RBool "autosync", []), -1, [],
645 [InitNone, Always, TestRun (
646 [["get_autosync"]])],
649 Get the autosync flag.");
651 ("set_verbose", (RErr, [Bool "verbose"]), -1, [FishAlias "verbose"],
655 If C<verbose> is true, this turns on verbose messages (to C<stderr>).
657 Verbose messages are disabled unless the environment variable
658 C<LIBGUESTFS_DEBUG> is defined and set to C<1>.");
660 ("get_verbose", (RBool "verbose", []), -1, [],
664 This returns the verbose messages flag.");
666 ("is_ready", (RBool "ready", []), -1, [],
667 [InitNone, Always, TestOutputTrue (
669 "is ready to accept commands",
671 This returns true iff this handle is ready to accept commands
672 (in the C<READY> state).
674 For more information on states, see L<guestfs(3)>.");
676 ("is_config", (RBool "config", []), -1, [],
677 [InitNone, Always, TestOutputFalse (
679 "is in configuration state",
681 This returns true iff this handle is being configured
682 (in the C<CONFIG> state).
684 For more information on states, see L<guestfs(3)>.");
686 ("is_launching", (RBool "launching", []), -1, [],
687 [InitNone, Always, TestOutputFalse (
688 [["is_launching"]])],
689 "is launching subprocess",
691 This returns true iff this handle is launching the subprocess
692 (in the C<LAUNCHING> state).
694 For more information on states, see L<guestfs(3)>.");
696 ("is_busy", (RBool "busy", []), -1, [],
697 [InitNone, Always, TestOutputFalse (
699 "is busy processing a command",
701 This returns true iff this handle is busy processing a command
702 (in the C<BUSY> state).
704 For more information on states, see L<guestfs(3)>.");
706 ("get_state", (RInt "state", []), -1, [],
708 "get the current state",
710 This returns the current state as an opaque integer. This is
711 only useful for printing debug and internal error messages.
713 For more information on states, see L<guestfs(3)>.");
715 ("set_memsize", (RErr, [Int "memsize"]), -1, [FishAlias "memsize"],
716 [InitNone, Always, TestOutputInt (
717 [["set_memsize"; "500"];
718 ["get_memsize"]], 500)],
719 "set memory allocated to the qemu subprocess",
721 This sets the memory size in megabytes allocated to the
722 qemu subprocess. This only has any effect if called before
725 You can also change this by setting the environment
726 variable C<LIBGUESTFS_MEMSIZE> before the handle is
729 For more information on the architecture of libguestfs,
730 see L<guestfs(3)>.");
732 ("get_memsize", (RInt "memsize", []), -1, [],
733 [InitNone, Always, TestOutputIntOp (
734 [["get_memsize"]], ">=", 256)],
735 "get memory allocated to the qemu subprocess",
737 This gets the memory size in megabytes allocated to the
740 If C<guestfs_set_memsize> was not called
741 on this handle, and if C<LIBGUESTFS_MEMSIZE> was not set,
742 then this returns the compiled-in default value for memsize.
744 For more information on the architecture of libguestfs,
745 see L<guestfs(3)>.");
747 ("get_pid", (RInt "pid", []), -1, [FishAlias "pid"],
748 [InitNone, Always, TestOutputIntOp (
749 [["get_pid"]], ">=", 1)],
750 "get PID of qemu subprocess",
752 Return the process ID of the qemu subprocess. If there is no
753 qemu subprocess, then this will return an error.
755 This is an internal call used for debugging and testing.");
757 ("version", (RStruct ("version", "version"), []), -1, [],
758 [InitNone, Always, TestOutputStruct (
759 [["version"]], [CompareWithInt ("major", 1)])],
760 "get the library version number",
762 Return the libguestfs version number that the program is linked
765 Note that because of dynamic linking this is not necessarily
766 the version of libguestfs that you compiled against. You can
767 compile the program, and then at runtime dynamically link
768 against a completely different C<libguestfs.so> library.
770 This call was added in version C<1.0.58>. In previous
771 versions of libguestfs there was no way to get the version
772 number. From C code you can use ELF weak linking tricks to find out if
773 this symbol exists (if it doesn't, then it's an earlier version).
775 The call returns a structure with four elements. The first
776 three (C<major>, C<minor> and C<release>) are numbers and
777 correspond to the usual version triplet. The fourth element
778 (C<extra>) is a string and is normally empty, but may be
779 used for distro-specific information.
781 To construct the original version string:
782 C<$major.$minor.$release$extra>
784 I<Note:> Don't use this call to test for availability
785 of features. Distro backports makes this unreliable. Use
786 C<guestfs_available> instead.");
788 ("set_selinux", (RErr, [Bool "selinux"]), -1, [FishAlias "selinux"],
789 [InitNone, Always, TestOutputTrue (
790 [["set_selinux"; "true"];
792 "set SELinux enabled or disabled at appliance boot",
794 This sets the selinux flag that is passed to the appliance
795 at boot time. The default is C<selinux=0> (disabled).
797 Note that if SELinux is enabled, it is always in
798 Permissive mode (C<enforcing=0>).
800 For more information on the architecture of libguestfs,
801 see L<guestfs(3)>.");
803 ("get_selinux", (RBool "selinux", []), -1, [],
805 "get SELinux enabled flag",
807 This returns the current setting of the selinux flag which
808 is passed to the appliance at boot time. See C<guestfs_set_selinux>.
810 For more information on the architecture of libguestfs,
811 see L<guestfs(3)>.");
813 ("set_trace", (RErr, [Bool "trace"]), -1, [FishAlias "trace"],
814 [InitNone, Always, TestOutputFalse (
815 [["set_trace"; "false"];
817 "enable or disable command traces",
819 If the command trace flag is set to 1, then commands are
820 printed on stdout before they are executed in a format
821 which is very similar to the one used by guestfish. In
822 other words, you can run a program with this enabled, and
823 you will get out a script which you can feed to guestfish
824 to perform the same set of actions.
826 If you want to trace C API calls into libguestfs (and
827 other libraries) then possibly a better way is to use
828 the external ltrace(1) command.
830 Command traces are disabled unless the environment variable
831 C<LIBGUESTFS_TRACE> is defined and set to C<1>.");
833 ("get_trace", (RBool "trace", []), -1, [],
835 "get command trace enabled flag",
837 Return the command trace flag.");
839 ("set_direct", (RErr, [Bool "direct"]), -1, [FishAlias "direct"],
840 [InitNone, Always, TestOutputFalse (
841 [["set_direct"; "false"];
843 "enable or disable direct appliance mode",
845 If the direct appliance mode flag is enabled, then stdin and
846 stdout are passed directly through to the appliance once it
849 One consequence of this is that log messages aren't caught
850 by the library and handled by C<guestfs_set_log_message_callback>,
851 but go straight to stdout.
853 You probably don't want to use this unless you know what you
856 The default is disabled.");
858 ("get_direct", (RBool "direct", []), -1, [],
860 "get direct appliance mode flag",
862 Return the direct appliance mode flag.");
864 ("set_recovery_proc", (RErr, [Bool "recoveryproc"]), -1, [FishAlias "recovery-proc"],
865 [InitNone, Always, TestOutputTrue (
866 [["set_recovery_proc"; "true"];
867 ["get_recovery_proc"]])],
868 "enable or disable the recovery process",
870 If this is called with the parameter C<false> then
871 C<guestfs_launch> does not create a recovery process. The
872 purpose of the recovery process is to stop runaway qemu
873 processes in the case where the main program aborts abruptly.
875 This only has any effect if called before C<guestfs_launch>,
876 and the default is true.
878 About the only time when you would want to disable this is
879 if the main process will fork itself into the background
880 (\"daemonize\" itself). In this case the recovery process
881 thinks that the main program has disappeared and so kills
882 qemu, which is not very helpful.");
884 ("get_recovery_proc", (RBool "recoveryproc", []), -1, [],
886 "get recovery process enabled flag",
888 Return the recovery process enabled flag.");
892 (* daemon_functions are any functions which cause some action
893 * to take place in the daemon.
896 let daemon_functions = [
897 ("mount", (RErr, [Device "device"; String "mountpoint"]), 1, [],
898 [InitEmpty, Always, TestOutput (
899 [["part_disk"; "/dev/sda"; "mbr"];
900 ["mkfs"; "ext2"; "/dev/sda1"];
901 ["mount"; "/dev/sda1"; "/"];
902 ["write_file"; "/new"; "new file contents"; "0"];
903 ["cat"; "/new"]], "new file contents")],
904 "mount a guest disk at a position in the filesystem",
906 Mount a guest disk at a position in the filesystem. Block devices
907 are named C</dev/sda>, C</dev/sdb> and so on, as they were added to
908 the guest. If those block devices contain partitions, they will have
909 the usual names (eg. C</dev/sda1>). Also LVM C</dev/VG/LV>-style
912 The rules are the same as for L<mount(2)>: A filesystem must
913 first be mounted on C</> before others can be mounted. Other
914 filesystems can only be mounted on directories which already
917 The mounted filesystem is writable, if we have sufficient permissions
918 on the underlying device.
920 The filesystem options C<sync> and C<noatime> are set with this
921 call, in order to improve reliability.");
923 ("sync", (RErr, []), 2, [],
924 [ InitEmpty, Always, TestRun [["sync"]]],
925 "sync disks, writes are flushed through to the disk image",
927 This syncs the disk, so that any writes are flushed through to the
928 underlying disk image.
930 You should always call this if you have modified a disk image, before
931 closing the handle.");
933 ("touch", (RErr, [Pathname "path"]), 3, [],
934 [InitBasicFS, Always, TestOutputTrue (
936 ["exists"; "/new"]])],
937 "update file timestamps or create a new file",
939 Touch acts like the L<touch(1)> command. It can be used to
940 update the timestamps on a file, or, if the file does not exist,
941 to create a new zero-length file.");
943 ("cat", (RString "content", [Pathname "path"]), 4, [ProtocolLimitWarning],
944 [InitISOFS, Always, TestOutput (
945 [["cat"; "/known-2"]], "abcdef\n")],
946 "list the contents of a file",
948 Return the contents of the file named C<path>.
950 Note that this function cannot correctly handle binary files
951 (specifically, files containing C<\\0> character which is treated
952 as end of string). For those you need to use the C<guestfs_read_file>
953 or C<guestfs_download> functions which have a more complex interface.");
955 ("ll", (RString "listing", [Pathname "directory"]), 5, [],
956 [], (* XXX Tricky to test because it depends on the exact format
957 * of the 'ls -l' command, which changes between F10 and F11.
959 "list the files in a directory (long format)",
961 List the files in C<directory> (relative to the root directory,
962 there is no cwd) in the format of 'ls -la'.
964 This command is mostly useful for interactive sessions. It
965 is I<not> intended that you try to parse the output string.");
967 ("ls", (RStringList "listing", [Pathname "directory"]), 6, [],
968 [InitBasicFS, Always, TestOutputList (
971 ["touch"; "/newest"];
972 ["ls"; "/"]], ["lost+found"; "new"; "newer"; "newest"])],
973 "list the files in a directory",
975 List the files in C<directory> (relative to the root directory,
976 there is no cwd). The '.' and '..' entries are not returned, but
977 hidden files are shown.
979 This command is mostly useful for interactive sessions. Programs
980 should probably use C<guestfs_readdir> instead.");
982 ("list_devices", (RStringList "devices", []), 7, [],
983 [InitEmpty, Always, TestOutputListOfDevices (
984 [["list_devices"]], ["/dev/sda"; "/dev/sdb"; "/dev/sdc"; "/dev/sdd"])],
985 "list the block devices",
987 List all the block devices.
989 The full block device names are returned, eg. C</dev/sda>");
991 ("list_partitions", (RStringList "partitions", []), 8, [],
992 [InitBasicFS, Always, TestOutputListOfDevices (
993 [["list_partitions"]], ["/dev/sda1"]);
994 InitEmpty, Always, TestOutputListOfDevices (
995 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
996 ["list_partitions"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
997 "list the partitions",
999 List all the partitions detected on all block devices.
1001 The full partition device names are returned, eg. C</dev/sda1>
1003 This does not return logical volumes. For that you will need to
1004 call C<guestfs_lvs>.");
1006 ("pvs", (RStringList "physvols", []), 9, [Optional "lvm2"],
1007 [InitBasicFSonLVM, Always, TestOutputListOfDevices (
1008 [["pvs"]], ["/dev/sda1"]);
1009 InitEmpty, Always, TestOutputListOfDevices (
1010 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1011 ["pvcreate"; "/dev/sda1"];
1012 ["pvcreate"; "/dev/sda2"];
1013 ["pvcreate"; "/dev/sda3"];
1014 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
1015 "list the LVM physical volumes (PVs)",
1017 List all the physical volumes detected. This is the equivalent
1018 of the L<pvs(8)> command.
1020 This returns a list of just the device names that contain
1021 PVs (eg. C</dev/sda2>).
1023 See also C<guestfs_pvs_full>.");
1025 ("vgs", (RStringList "volgroups", []), 10, [Optional "lvm2"],
1026 [InitBasicFSonLVM, Always, TestOutputList (
1028 InitEmpty, Always, TestOutputList (
1029 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1030 ["pvcreate"; "/dev/sda1"];
1031 ["pvcreate"; "/dev/sda2"];
1032 ["pvcreate"; "/dev/sda3"];
1033 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1034 ["vgcreate"; "VG2"; "/dev/sda3"];
1035 ["vgs"]], ["VG1"; "VG2"])],
1036 "list the LVM volume groups (VGs)",
1038 List all the volumes groups detected. This is the equivalent
1039 of the L<vgs(8)> command.
1041 This returns a list of just the volume group names that were
1042 detected (eg. C<VolGroup00>).
1044 See also C<guestfs_vgs_full>.");
1046 ("lvs", (RStringList "logvols", []), 11, [Optional "lvm2"],
1047 [InitBasicFSonLVM, Always, TestOutputList (
1048 [["lvs"]], ["/dev/VG/LV"]);
1049 InitEmpty, Always, TestOutputList (
1050 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1051 ["pvcreate"; "/dev/sda1"];
1052 ["pvcreate"; "/dev/sda2"];
1053 ["pvcreate"; "/dev/sda3"];
1054 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1055 ["vgcreate"; "VG2"; "/dev/sda3"];
1056 ["lvcreate"; "LV1"; "VG1"; "50"];
1057 ["lvcreate"; "LV2"; "VG1"; "50"];
1058 ["lvcreate"; "LV3"; "VG2"; "50"];
1059 ["lvs"]], ["/dev/VG1/LV1"; "/dev/VG1/LV2"; "/dev/VG2/LV3"])],
1060 "list the LVM logical volumes (LVs)",
1062 List all the logical volumes detected. This is the equivalent
1063 of the L<lvs(8)> command.
1065 This returns a list of the logical volume device names
1066 (eg. C</dev/VolGroup00/LogVol00>).
1068 See also C<guestfs_lvs_full>.");
1070 ("pvs_full", (RStructList ("physvols", "lvm_pv"), []), 12, [Optional "lvm2"],
1071 [], (* XXX how to test? *)
1072 "list the LVM physical volumes (PVs)",
1074 List all the physical volumes detected. This is the equivalent
1075 of the L<pvs(8)> command. The \"full\" version includes all fields.");
1077 ("vgs_full", (RStructList ("volgroups", "lvm_vg"), []), 13, [Optional "lvm2"],
1078 [], (* XXX how to test? *)
1079 "list the LVM volume groups (VGs)",
1081 List all the volumes groups detected. This is the equivalent
1082 of the L<vgs(8)> command. The \"full\" version includes all fields.");
1084 ("lvs_full", (RStructList ("logvols", "lvm_lv"), []), 14, [Optional "lvm2"],
1085 [], (* XXX how to test? *)
1086 "list the LVM logical volumes (LVs)",
1088 List all the logical volumes detected. This is the equivalent
1089 of the L<lvs(8)> command. The \"full\" version includes all fields.");
1091 ("read_lines", (RStringList "lines", [Pathname "path"]), 15, [],
1092 [InitISOFS, Always, TestOutputList (
1093 [["read_lines"; "/known-4"]], ["abc"; "def"; "ghi"]);
1094 InitISOFS, Always, TestOutputList (
1095 [["read_lines"; "/empty"]], [])],
1096 "read file as lines",
1098 Return the contents of the file named C<path>.
1100 The file contents are returned as a list of lines. Trailing
1101 C<LF> and C<CRLF> character sequences are I<not> returned.
1103 Note that this function cannot correctly handle binary files
1104 (specifically, files containing C<\\0> character which is treated
1105 as end of line). For those you need to use the C<guestfs_read_file>
1106 function which has a more complex interface.");
1108 ("aug_init", (RErr, [Pathname "root"; Int "flags"]), 16, [Optional "augeas"],
1109 [], (* XXX Augeas code needs tests. *)
1110 "create a new Augeas handle",
1112 Create a new Augeas handle for editing configuration files.
1113 If there was any previous Augeas handle associated with this
1114 guestfs session, then it is closed.
1116 You must call this before using any other C<guestfs_aug_*>
1119 C<root> is the filesystem root. C<root> must not be NULL,
1122 The flags are the same as the flags defined in
1123 E<lt>augeas.hE<gt>, the logical I<or> of the following
1128 =item C<AUG_SAVE_BACKUP> = 1
1130 Keep the original file with a C<.augsave> extension.
1132 =item C<AUG_SAVE_NEWFILE> = 2
1134 Save changes into a file with extension C<.augnew>, and
1135 do not overwrite original. Overrides C<AUG_SAVE_BACKUP>.
1137 =item C<AUG_TYPE_CHECK> = 4
1139 Typecheck lenses (can be expensive).
1141 =item C<AUG_NO_STDINC> = 8
1143 Do not use standard load path for modules.
1145 =item C<AUG_SAVE_NOOP> = 16
1147 Make save a no-op, just record what would have been changed.
1149 =item C<AUG_NO_LOAD> = 32
1151 Do not load the tree in C<guestfs_aug_init>.
1155 To close the handle, you can call C<guestfs_aug_close>.
1157 To find out more about Augeas, see L<http://augeas.net/>.");
1159 ("aug_close", (RErr, []), 26, [Optional "augeas"],
1160 [], (* XXX Augeas code needs tests. *)
1161 "close the current Augeas handle",
1163 Close the current Augeas handle and free up any resources
1164 used by it. After calling this, you have to call
1165 C<guestfs_aug_init> again before you can use any other
1166 Augeas functions.");
1168 ("aug_defvar", (RInt "nrnodes", [String "name"; OptString "expr"]), 17, [Optional "augeas"],
1169 [], (* XXX Augeas code needs tests. *)
1170 "define an Augeas variable",
1172 Defines an Augeas variable C<name> whose value is the result
1173 of evaluating C<expr>. If C<expr> is NULL, then C<name> is
1176 On success this returns the number of nodes in C<expr>, or
1177 C<0> if C<expr> evaluates to something which is not a nodeset.");
1179 ("aug_defnode", (RStruct ("nrnodescreated", "int_bool"), [String "name"; String "expr"; String "val"]), 18, [Optional "augeas"],
1180 [], (* XXX Augeas code needs tests. *)
1181 "define an Augeas node",
1183 Defines a variable C<name> whose value is the result of
1186 If C<expr> evaluates to an empty nodeset, a node is created,
1187 equivalent to calling C<guestfs_aug_set> C<expr>, C<value>.
1188 C<name> will be the nodeset containing that single node.
1190 On success this returns a pair containing the
1191 number of nodes in the nodeset, and a boolean flag
1192 if a node was created.");
1194 ("aug_get", (RString "val", [String "augpath"]), 19, [Optional "augeas"],
1195 [], (* XXX Augeas code needs tests. *)
1196 "look up the value of an Augeas path",
1198 Look up the value associated with C<path>. If C<path>
1199 matches exactly one node, the C<value> is returned.");
1201 ("aug_set", (RErr, [String "augpath"; String "val"]), 20, [Optional "augeas"],
1202 [], (* XXX Augeas code needs tests. *)
1203 "set Augeas path to value",
1205 Set the value associated with C<path> to C<value>.");
1207 ("aug_insert", (RErr, [String "augpath"; String "label"; Bool "before"]), 21, [Optional "augeas"],
1208 [], (* XXX Augeas code needs tests. *)
1209 "insert a sibling Augeas node",
1211 Create a new sibling C<label> for C<path>, inserting it into
1212 the tree before or after C<path> (depending on the boolean
1215 C<path> must match exactly one existing node in the tree, and
1216 C<label> must be a label, ie. not contain C</>, C<*> or end
1217 with a bracketed index C<[N]>.");
1219 ("aug_rm", (RInt "nrnodes", [String "augpath"]), 22, [Optional "augeas"],
1220 [], (* XXX Augeas code needs tests. *)
1221 "remove an Augeas path",
1223 Remove C<path> and all of its children.
1225 On success this returns the number of entries which were removed.");
1227 ("aug_mv", (RErr, [String "src"; String "dest"]), 23, [Optional "augeas"],
1228 [], (* XXX Augeas code needs tests. *)
1231 Move the node C<src> to C<dest>. C<src> must match exactly
1232 one node. C<dest> is overwritten if it exists.");
1234 ("aug_match", (RStringList "matches", [String "augpath"]), 24, [Optional "augeas"],
1235 [], (* XXX Augeas code needs tests. *)
1236 "return Augeas nodes which match augpath",
1238 Returns a list of paths which match the path expression C<path>.
1239 The returned paths are sufficiently qualified so that they match
1240 exactly one node in the current tree.");
1242 ("aug_save", (RErr, []), 25, [Optional "augeas"],
1243 [], (* XXX Augeas code needs tests. *)
1244 "write all pending Augeas changes to disk",
1246 This writes all pending changes to disk.
1248 The flags which were passed to C<guestfs_aug_init> affect exactly
1249 how files are saved.");
1251 ("aug_load", (RErr, []), 27, [Optional "augeas"],
1252 [], (* XXX Augeas code needs tests. *)
1253 "load files into the tree",
1255 Load files into the tree.
1257 See C<aug_load> in the Augeas documentation for the full gory
1260 ("aug_ls", (RStringList "matches", [String "augpath"]), 28, [Optional "augeas"],
1261 [], (* XXX Augeas code needs tests. *)
1262 "list Augeas nodes under augpath",
1264 This is just a shortcut for listing C<guestfs_aug_match>
1265 C<path/*> and sorting the resulting nodes into alphabetical order.");
1267 ("rm", (RErr, [Pathname "path"]), 29, [],
1268 [InitBasicFS, Always, TestRun
1271 InitBasicFS, Always, TestLastFail
1273 InitBasicFS, Always, TestLastFail
1278 Remove the single file C<path>.");
1280 ("rmdir", (RErr, [Pathname "path"]), 30, [],
1281 [InitBasicFS, Always, TestRun
1284 InitBasicFS, Always, TestLastFail
1285 [["rmdir"; "/new"]];
1286 InitBasicFS, Always, TestLastFail
1288 ["rmdir"; "/new"]]],
1289 "remove a directory",
1291 Remove the single directory C<path>.");
1293 ("rm_rf", (RErr, [Pathname "path"]), 31, [],
1294 [InitBasicFS, Always, TestOutputFalse
1296 ["mkdir"; "/new/foo"];
1297 ["touch"; "/new/foo/bar"];
1299 ["exists"; "/new"]]],
1300 "remove a file or directory recursively",
1302 Remove the file or directory C<path>, recursively removing the
1303 contents if its a directory. This is like the C<rm -rf> shell
1306 ("mkdir", (RErr, [Pathname "path"]), 32, [],
1307 [InitBasicFS, Always, TestOutputTrue
1309 ["is_dir"; "/new"]];
1310 InitBasicFS, Always, TestLastFail
1311 [["mkdir"; "/new/foo/bar"]]],
1312 "create a directory",
1314 Create a directory named C<path>.");
1316 ("mkdir_p", (RErr, [Pathname "path"]), 33, [],
1317 [InitBasicFS, Always, TestOutputTrue
1318 [["mkdir_p"; "/new/foo/bar"];
1319 ["is_dir"; "/new/foo/bar"]];
1320 InitBasicFS, Always, TestOutputTrue
1321 [["mkdir_p"; "/new/foo/bar"];
1322 ["is_dir"; "/new/foo"]];
1323 InitBasicFS, Always, TestOutputTrue
1324 [["mkdir_p"; "/new/foo/bar"];
1325 ["is_dir"; "/new"]];
1326 (* Regression tests for RHBZ#503133: *)
1327 InitBasicFS, Always, TestRun
1329 ["mkdir_p"; "/new"]];
1330 InitBasicFS, Always, TestLastFail
1332 ["mkdir_p"; "/new"]]],
1333 "create a directory and parents",
1335 Create a directory named C<path>, creating any parent directories
1336 as necessary. This is like the C<mkdir -p> shell command.");
1338 ("chmod", (RErr, [Int "mode"; Pathname "path"]), 34, [],
1339 [], (* XXX Need stat command to test *)
1342 Change the mode (permissions) of C<path> to C<mode>. Only
1343 numeric modes are supported.
1345 I<Note>: When using this command from guestfish, C<mode>
1346 by default would be decimal, unless you prefix it with
1347 C<0> to get octal, ie. use C<0700> not C<700>.");
1349 ("chown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 35, [],
1350 [], (* XXX Need stat command to test *)
1351 "change file owner and group",
1353 Change the file owner to C<owner> and group to C<group>.
1355 Only numeric uid and gid are supported. If you want to use
1356 names, you will need to locate and parse the password file
1357 yourself (Augeas support makes this relatively easy).");
1359 ("exists", (RBool "existsflag", [Pathname "path"]), 36, [],
1360 [InitISOFS, Always, TestOutputTrue (
1361 [["exists"; "/empty"]]);
1362 InitISOFS, Always, TestOutputTrue (
1363 [["exists"; "/directory"]])],
1364 "test if file or directory exists",
1366 This returns C<true> if and only if there is a file, directory
1367 (or anything) with the given C<path> name.
1369 See also C<guestfs_is_file>, C<guestfs_is_dir>, C<guestfs_stat>.");
1371 ("is_file", (RBool "fileflag", [Pathname "path"]), 37, [],
1372 [InitISOFS, Always, TestOutputTrue (
1373 [["is_file"; "/known-1"]]);
1374 InitISOFS, Always, TestOutputFalse (
1375 [["is_file"; "/directory"]])],
1376 "test if file exists",
1378 This returns C<true> if and only if there is a file
1379 with the given C<path> name. Note that it returns false for
1380 other objects like directories.
1382 See also C<guestfs_stat>.");
1384 ("is_dir", (RBool "dirflag", [Pathname "path"]), 38, [],
1385 [InitISOFS, Always, TestOutputFalse (
1386 [["is_dir"; "/known-3"]]);
1387 InitISOFS, Always, TestOutputTrue (
1388 [["is_dir"; "/directory"]])],
1389 "test if file exists",
1391 This returns C<true> if and only if there is a directory
1392 with the given C<path> name. Note that it returns false for
1393 other objects like files.
1395 See also C<guestfs_stat>.");
1397 ("pvcreate", (RErr, [Device "device"]), 39, [Optional "lvm2"],
1398 [InitEmpty, Always, TestOutputListOfDevices (
1399 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1400 ["pvcreate"; "/dev/sda1"];
1401 ["pvcreate"; "/dev/sda2"];
1402 ["pvcreate"; "/dev/sda3"];
1403 ["pvs"]], ["/dev/sda1"; "/dev/sda2"; "/dev/sda3"])],
1404 "create an LVM physical volume",
1406 This creates an LVM physical volume on the named C<device>,
1407 where C<device> should usually be a partition name such
1410 ("vgcreate", (RErr, [String "volgroup"; DeviceList "physvols"]), 40, [Optional "lvm2"],
1411 [InitEmpty, Always, TestOutputList (
1412 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1413 ["pvcreate"; "/dev/sda1"];
1414 ["pvcreate"; "/dev/sda2"];
1415 ["pvcreate"; "/dev/sda3"];
1416 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1417 ["vgcreate"; "VG2"; "/dev/sda3"];
1418 ["vgs"]], ["VG1"; "VG2"])],
1419 "create an LVM volume group",
1421 This creates an LVM volume group called C<volgroup>
1422 from the non-empty list of physical volumes C<physvols>.");
1424 ("lvcreate", (RErr, [String "logvol"; String "volgroup"; Int "mbytes"]), 41, [Optional "lvm2"],
1425 [InitEmpty, Always, TestOutputList (
1426 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1427 ["pvcreate"; "/dev/sda1"];
1428 ["pvcreate"; "/dev/sda2"];
1429 ["pvcreate"; "/dev/sda3"];
1430 ["vgcreate"; "VG1"; "/dev/sda1 /dev/sda2"];
1431 ["vgcreate"; "VG2"; "/dev/sda3"];
1432 ["lvcreate"; "LV1"; "VG1"; "50"];
1433 ["lvcreate"; "LV2"; "VG1"; "50"];
1434 ["lvcreate"; "LV3"; "VG2"; "50"];
1435 ["lvcreate"; "LV4"; "VG2"; "50"];
1436 ["lvcreate"; "LV5"; "VG2"; "50"];
1438 ["/dev/VG1/LV1"; "/dev/VG1/LV2";
1439 "/dev/VG2/LV3"; "/dev/VG2/LV4"; "/dev/VG2/LV5"])],
1440 "create an LVM volume group",
1442 This creates an LVM volume group called C<logvol>
1443 on the volume group C<volgroup>, with C<size> megabytes.");
1445 ("mkfs", (RErr, [String "fstype"; Device "device"]), 42, [],
1446 [InitEmpty, Always, TestOutput (
1447 [["part_disk"; "/dev/sda"; "mbr"];
1448 ["mkfs"; "ext2"; "/dev/sda1"];
1449 ["mount_options"; ""; "/dev/sda1"; "/"];
1450 ["write_file"; "/new"; "new file contents"; "0"];
1451 ["cat"; "/new"]], "new file contents")],
1452 "make a filesystem",
1454 This creates a filesystem on C<device> (usually a partition
1455 or LVM logical volume). The filesystem type is C<fstype>, for
1458 ("sfdisk", (RErr, [Device "device";
1459 Int "cyls"; Int "heads"; Int "sectors";
1460 StringList "lines"]), 43, [DangerWillRobinson],
1462 "create partitions on a block device",
1464 This is a direct interface to the L<sfdisk(8)> program for creating
1465 partitions on block devices.
1467 C<device> should be a block device, for example C</dev/sda>.
1469 C<cyls>, C<heads> and C<sectors> are the number of cylinders, heads
1470 and sectors on the device, which are passed directly to sfdisk as
1471 the I<-C>, I<-H> and I<-S> parameters. If you pass C<0> for any
1472 of these, then the corresponding parameter is omitted. Usually for
1473 'large' disks, you can just pass C<0> for these, but for small
1474 (floppy-sized) disks, sfdisk (or rather, the kernel) cannot work
1475 out the right geometry and you will need to tell it.
1477 C<lines> is a list of lines that we feed to C<sfdisk>. For more
1478 information refer to the L<sfdisk(8)> manpage.
1480 To create a single partition occupying the whole disk, you would
1481 pass C<lines> as a single element list, when the single element being
1482 the string C<,> (comma).
1484 See also: C<guestfs_sfdisk_l>, C<guestfs_sfdisk_N>,
1485 C<guestfs_part_init>");
1487 ("write_file", (RErr, [Pathname "path"; String "content"; Int "size"]), 44, [ProtocolLimitWarning],
1488 [InitBasicFS, Always, TestOutput (
1489 [["write_file"; "/new"; "new file contents"; "0"];
1490 ["cat"; "/new"]], "new file contents");
1491 InitBasicFS, Always, TestOutput (
1492 [["write_file"; "/new"; "\nnew file contents\n"; "0"];
1493 ["cat"; "/new"]], "\nnew file contents\n");
1494 InitBasicFS, Always, TestOutput (
1495 [["write_file"; "/new"; "\n\n"; "0"];
1496 ["cat"; "/new"]], "\n\n");
1497 InitBasicFS, Always, TestOutput (
1498 [["write_file"; "/new"; ""; "0"];
1499 ["cat"; "/new"]], "");
1500 InitBasicFS, Always, TestOutput (
1501 [["write_file"; "/new"; "\n\n\n"; "0"];
1502 ["cat"; "/new"]], "\n\n\n");
1503 InitBasicFS, Always, TestOutput (
1504 [["write_file"; "/new"; "\n"; "0"];
1505 ["cat"; "/new"]], "\n")],
1508 This call creates a file called C<path>. The contents of the
1509 file is the string C<content> (which can contain any 8 bit data),
1510 with length C<size>.
1512 As a special case, if C<size> is C<0>
1513 then the length is calculated using C<strlen> (so in this case
1514 the content cannot contain embedded ASCII NULs).
1516 I<NB.> Owing to a bug, writing content containing ASCII NUL
1517 characters does I<not> work, even if the length is specified.
1518 We hope to resolve this bug in a future version. In the meantime
1519 use C<guestfs_upload>.");
1521 ("umount", (RErr, [String "pathordevice"]), 45, [FishAlias "unmount"],
1522 [InitEmpty, Always, TestOutputListOfDevices (
1523 [["part_disk"; "/dev/sda"; "mbr"];
1524 ["mkfs"; "ext2"; "/dev/sda1"];
1525 ["mount_options"; ""; "/dev/sda1"; "/"];
1526 ["mounts"]], ["/dev/sda1"]);
1527 InitEmpty, Always, TestOutputList (
1528 [["part_disk"; "/dev/sda"; "mbr"];
1529 ["mkfs"; "ext2"; "/dev/sda1"];
1530 ["mount_options"; ""; "/dev/sda1"; "/"];
1533 "unmount a filesystem",
1535 This unmounts the given filesystem. The filesystem may be
1536 specified either by its mountpoint (path) or the device which
1537 contains the filesystem.");
1539 ("mounts", (RStringList "devices", []), 46, [],
1540 [InitBasicFS, Always, TestOutputListOfDevices (
1541 [["mounts"]], ["/dev/sda1"])],
1542 "show mounted filesystems",
1544 This returns the list of currently mounted filesystems. It returns
1545 the list of devices (eg. C</dev/sda1>, C</dev/VG/LV>).
1547 Some internal mounts are not shown.
1549 See also: C<guestfs_mountpoints>");
1551 ("umount_all", (RErr, []), 47, [FishAlias "unmount-all"],
1552 [InitBasicFS, Always, TestOutputList (
1555 (* check that umount_all can unmount nested mounts correctly: *)
1556 InitEmpty, Always, TestOutputList (
1557 [["sfdiskM"; "/dev/sda"; ",100 ,200 ,"];
1558 ["mkfs"; "ext2"; "/dev/sda1"];
1559 ["mkfs"; "ext2"; "/dev/sda2"];
1560 ["mkfs"; "ext2"; "/dev/sda3"];
1561 ["mount_options"; ""; "/dev/sda1"; "/"];
1563 ["mount_options"; ""; "/dev/sda2"; "/mp1"];
1564 ["mkdir"; "/mp1/mp2"];
1565 ["mount_options"; ""; "/dev/sda3"; "/mp1/mp2"];
1566 ["mkdir"; "/mp1/mp2/mp3"];
1569 "unmount all filesystems",
1571 This unmounts all mounted filesystems.
1573 Some internal mounts are not unmounted by this call.");
1575 ("lvm_remove_all", (RErr, []), 48, [DangerWillRobinson; Optional "lvm2"],
1577 "remove all LVM LVs, VGs and PVs",
1579 This command removes all LVM logical volumes, volume groups
1580 and physical volumes.");
1582 ("file", (RString "description", [Dev_or_Path "path"]), 49, [],
1583 [InitISOFS, Always, TestOutput (
1584 [["file"; "/empty"]], "empty");
1585 InitISOFS, Always, TestOutput (
1586 [["file"; "/known-1"]], "ASCII text");
1587 InitISOFS, Always, TestLastFail (
1588 [["file"; "/notexists"]])],
1589 "determine file type",
1591 This call uses the standard L<file(1)> command to determine
1592 the type or contents of the file. This also works on devices,
1593 for example to find out whether a partition contains a filesystem.
1595 This call will also transparently look inside various types
1598 The exact command which runs is C<file -zbsL path>. Note in
1599 particular that the filename is not prepended to the output
1600 (the C<-b> option).");
1602 ("command", (RString "output", [StringList "arguments"]), 50, [ProtocolLimitWarning],
1603 [InitBasicFS, Always, TestOutput (
1604 [["upload"; "test-command"; "/test-command"];
1605 ["chmod"; "0o755"; "/test-command"];
1606 ["command"; "/test-command 1"]], "Result1");
1607 InitBasicFS, Always, TestOutput (
1608 [["upload"; "test-command"; "/test-command"];
1609 ["chmod"; "0o755"; "/test-command"];
1610 ["command"; "/test-command 2"]], "Result2\n");
1611 InitBasicFS, Always, TestOutput (
1612 [["upload"; "test-command"; "/test-command"];
1613 ["chmod"; "0o755"; "/test-command"];
1614 ["command"; "/test-command 3"]], "\nResult3");
1615 InitBasicFS, Always, TestOutput (
1616 [["upload"; "test-command"; "/test-command"];
1617 ["chmod"; "0o755"; "/test-command"];
1618 ["command"; "/test-command 4"]], "\nResult4\n");
1619 InitBasicFS, Always, TestOutput (
1620 [["upload"; "test-command"; "/test-command"];
1621 ["chmod"; "0o755"; "/test-command"];
1622 ["command"; "/test-command 5"]], "\nResult5\n\n");
1623 InitBasicFS, Always, TestOutput (
1624 [["upload"; "test-command"; "/test-command"];
1625 ["chmod"; "0o755"; "/test-command"];
1626 ["command"; "/test-command 6"]], "\n\nResult6\n\n");
1627 InitBasicFS, Always, TestOutput (
1628 [["upload"; "test-command"; "/test-command"];
1629 ["chmod"; "0o755"; "/test-command"];
1630 ["command"; "/test-command 7"]], "");
1631 InitBasicFS, Always, TestOutput (
1632 [["upload"; "test-command"; "/test-command"];
1633 ["chmod"; "0o755"; "/test-command"];
1634 ["command"; "/test-command 8"]], "\n");
1635 InitBasicFS, Always, TestOutput (
1636 [["upload"; "test-command"; "/test-command"];
1637 ["chmod"; "0o755"; "/test-command"];
1638 ["command"; "/test-command 9"]], "\n\n");
1639 InitBasicFS, Always, TestOutput (
1640 [["upload"; "test-command"; "/test-command"];
1641 ["chmod"; "0o755"; "/test-command"];
1642 ["command"; "/test-command 10"]], "Result10-1\nResult10-2\n");
1643 InitBasicFS, Always, TestOutput (
1644 [["upload"; "test-command"; "/test-command"];
1645 ["chmod"; "0o755"; "/test-command"];
1646 ["command"; "/test-command 11"]], "Result11-1\nResult11-2");
1647 InitBasicFS, Always, TestLastFail (
1648 [["upload"; "test-command"; "/test-command"];
1649 ["chmod"; "0o755"; "/test-command"];
1650 ["command"; "/test-command"]])],
1651 "run a command from the guest filesystem",
1653 This call runs a command from the guest filesystem. The
1654 filesystem must be mounted, and must contain a compatible
1655 operating system (ie. something Linux, with the same
1656 or compatible processor architecture).
1658 The single parameter is an argv-style list of arguments.
1659 The first element is the name of the program to run.
1660 Subsequent elements are parameters. The list must be
1661 non-empty (ie. must contain a program name). Note that
1662 the command runs directly, and is I<not> invoked via
1663 the shell (see C<guestfs_sh>).
1665 The return value is anything printed to I<stdout> by
1668 If the command returns a non-zero exit status, then
1669 this function returns an error message. The error message
1670 string is the content of I<stderr> from the command.
1672 The C<$PATH> environment variable will contain at least
1673 C</usr/bin> and C</bin>. If you require a program from
1674 another location, you should provide the full path in the
1677 Shared libraries and data files required by the program
1678 must be available on filesystems which are mounted in the
1679 correct places. It is the caller's responsibility to ensure
1680 all filesystems that are needed are mounted at the right
1683 ("command_lines", (RStringList "lines", [StringList "arguments"]), 51, [ProtocolLimitWarning],
1684 [InitBasicFS, Always, TestOutputList (
1685 [["upload"; "test-command"; "/test-command"];
1686 ["chmod"; "0o755"; "/test-command"];
1687 ["command_lines"; "/test-command 1"]], ["Result1"]);
1688 InitBasicFS, Always, TestOutputList (
1689 [["upload"; "test-command"; "/test-command"];
1690 ["chmod"; "0o755"; "/test-command"];
1691 ["command_lines"; "/test-command 2"]], ["Result2"]);
1692 InitBasicFS, Always, TestOutputList (
1693 [["upload"; "test-command"; "/test-command"];
1694 ["chmod"; "0o755"; "/test-command"];
1695 ["command_lines"; "/test-command 3"]], ["";"Result3"]);
1696 InitBasicFS, Always, TestOutputList (
1697 [["upload"; "test-command"; "/test-command"];
1698 ["chmod"; "0o755"; "/test-command"];
1699 ["command_lines"; "/test-command 4"]], ["";"Result4"]);
1700 InitBasicFS, Always, TestOutputList (
1701 [["upload"; "test-command"; "/test-command"];
1702 ["chmod"; "0o755"; "/test-command"];
1703 ["command_lines"; "/test-command 5"]], ["";"Result5";""]);
1704 InitBasicFS, Always, TestOutputList (
1705 [["upload"; "test-command"; "/test-command"];
1706 ["chmod"; "0o755"; "/test-command"];
1707 ["command_lines"; "/test-command 6"]], ["";"";"Result6";""]);
1708 InitBasicFS, Always, TestOutputList (
1709 [["upload"; "test-command"; "/test-command"];
1710 ["chmod"; "0o755"; "/test-command"];
1711 ["command_lines"; "/test-command 7"]], []);
1712 InitBasicFS, Always, TestOutputList (
1713 [["upload"; "test-command"; "/test-command"];
1714 ["chmod"; "0o755"; "/test-command"];
1715 ["command_lines"; "/test-command 8"]], [""]);
1716 InitBasicFS, Always, TestOutputList (
1717 [["upload"; "test-command"; "/test-command"];
1718 ["chmod"; "0o755"; "/test-command"];
1719 ["command_lines"; "/test-command 9"]], ["";""]);
1720 InitBasicFS, Always, TestOutputList (
1721 [["upload"; "test-command"; "/test-command"];
1722 ["chmod"; "0o755"; "/test-command"];
1723 ["command_lines"; "/test-command 10"]], ["Result10-1";"Result10-2"]);
1724 InitBasicFS, Always, TestOutputList (
1725 [["upload"; "test-command"; "/test-command"];
1726 ["chmod"; "0o755"; "/test-command"];
1727 ["command_lines"; "/test-command 11"]], ["Result11-1";"Result11-2"])],
1728 "run a command, returning lines",
1730 This is the same as C<guestfs_command>, but splits the
1731 result into a list of lines.
1733 See also: C<guestfs_sh_lines>");
1735 ("stat", (RStruct ("statbuf", "stat"), [Pathname "path"]), 52, [],
1736 [InitISOFS, Always, TestOutputStruct (
1737 [["stat"; "/empty"]], [CompareWithInt ("size", 0)])],
1738 "get file information",
1740 Returns file information for the given C<path>.
1742 This is the same as the C<stat(2)> system call.");
1744 ("lstat", (RStruct ("statbuf", "stat"), [Pathname "path"]), 53, [],
1745 [InitISOFS, Always, TestOutputStruct (
1746 [["lstat"; "/empty"]], [CompareWithInt ("size", 0)])],
1747 "get file information for a symbolic link",
1749 Returns file information for the given C<path>.
1751 This is the same as C<guestfs_stat> except that if C<path>
1752 is a symbolic link, then the link is stat-ed, not the file it
1755 This is the same as the C<lstat(2)> system call.");
1757 ("statvfs", (RStruct ("statbuf", "statvfs"), [Pathname "path"]), 54, [],
1758 [InitISOFS, Always, TestOutputStruct (
1759 [["statvfs"; "/"]], [CompareWithInt ("namemax", 255)])],
1760 "get file system statistics",
1762 Returns file system statistics for any mounted file system.
1763 C<path> should be a file or directory in the mounted file system
1764 (typically it is the mount point itself, but it doesn't need to be).
1766 This is the same as the C<statvfs(2)> system call.");
1768 ("tune2fs_l", (RHashtable "superblock", [Device "device"]), 55, [],
1770 "get ext2/ext3/ext4 superblock details",
1772 This returns the contents of the ext2, ext3 or ext4 filesystem
1773 superblock on C<device>.
1775 It is the same as running C<tune2fs -l device>. See L<tune2fs(8)>
1776 manpage for more details. The list of fields returned isn't
1777 clearly defined, and depends on both the version of C<tune2fs>
1778 that libguestfs was built against, and the filesystem itself.");
1780 ("blockdev_setro", (RErr, [Device "device"]), 56, [],
1781 [InitEmpty, Always, TestOutputTrue (
1782 [["blockdev_setro"; "/dev/sda"];
1783 ["blockdev_getro"; "/dev/sda"]])],
1784 "set block device to read-only",
1786 Sets the block device named C<device> to read-only.
1788 This uses the L<blockdev(8)> command.");
1790 ("blockdev_setrw", (RErr, [Device "device"]), 57, [],
1791 [InitEmpty, Always, TestOutputFalse (
1792 [["blockdev_setrw"; "/dev/sda"];
1793 ["blockdev_getro"; "/dev/sda"]])],
1794 "set block device to read-write",
1796 Sets the block device named C<device> to read-write.
1798 This uses the L<blockdev(8)> command.");
1800 ("blockdev_getro", (RBool "ro", [Device "device"]), 58, [],
1801 [InitEmpty, Always, TestOutputTrue (
1802 [["blockdev_setro"; "/dev/sda"];
1803 ["blockdev_getro"; "/dev/sda"]])],
1804 "is block device set to read-only",
1806 Returns a boolean indicating if the block device is read-only
1807 (true if read-only, false if not).
1809 This uses the L<blockdev(8)> command.");
1811 ("blockdev_getss", (RInt "sectorsize", [Device "device"]), 59, [],
1812 [InitEmpty, Always, TestOutputInt (
1813 [["blockdev_getss"; "/dev/sda"]], 512)],
1814 "get sectorsize of block device",
1816 This returns the size of sectors on a block device.
1817 Usually 512, but can be larger for modern devices.
1819 (Note, this is not the size in sectors, use C<guestfs_blockdev_getsz>
1822 This uses the L<blockdev(8)> command.");
1824 ("blockdev_getbsz", (RInt "blocksize", [Device "device"]), 60, [],
1825 [InitEmpty, Always, TestOutputInt (
1826 [["blockdev_getbsz"; "/dev/sda"]], 4096)],
1827 "get blocksize of block device",
1829 This returns the block size of a device.
1831 (Note this is different from both I<size in blocks> and
1832 I<filesystem block size>).
1834 This uses the L<blockdev(8)> command.");
1836 ("blockdev_setbsz", (RErr, [Device "device"; Int "blocksize"]), 61, [],
1838 "set blocksize of block device",
1840 This sets the block size of a device.
1842 (Note this is different from both I<size in blocks> and
1843 I<filesystem block size>).
1845 This uses the L<blockdev(8)> command.");
1847 ("blockdev_getsz", (RInt64 "sizeinsectors", [Device "device"]), 62, [],
1848 [InitEmpty, Always, TestOutputInt (
1849 [["blockdev_getsz"; "/dev/sda"]], 1024000)],
1850 "get total size of device in 512-byte sectors",
1852 This returns the size of the device in units of 512-byte sectors
1853 (even if the sectorsize isn't 512 bytes ... weird).
1855 See also C<guestfs_blockdev_getss> for the real sector size of
1856 the device, and C<guestfs_blockdev_getsize64> for the more
1857 useful I<size in bytes>.
1859 This uses the L<blockdev(8)> command.");
1861 ("blockdev_getsize64", (RInt64 "sizeinbytes", [Device "device"]), 63, [],
1862 [InitEmpty, Always, TestOutputInt (
1863 [["blockdev_getsize64"; "/dev/sda"]], 524288000)],
1864 "get total size of device in bytes",
1866 This returns the size of the device in bytes.
1868 See also C<guestfs_blockdev_getsz>.
1870 This uses the L<blockdev(8)> command.");
1872 ("blockdev_flushbufs", (RErr, [Device "device"]), 64, [],
1873 [InitEmpty, Always, TestRun
1874 [["blockdev_flushbufs"; "/dev/sda"]]],
1875 "flush device buffers",
1877 This tells the kernel to flush internal buffers associated
1880 This uses the L<blockdev(8)> command.");
1882 ("blockdev_rereadpt", (RErr, [Device "device"]), 65, [],
1883 [InitEmpty, Always, TestRun
1884 [["blockdev_rereadpt"; "/dev/sda"]]],
1885 "reread partition table",
1887 Reread the partition table on C<device>.
1889 This uses the L<blockdev(8)> command.");
1891 ("upload", (RErr, [FileIn "filename"; Dev_or_Path "remotefilename"]), 66, [],
1892 [InitBasicFS, Always, TestOutput (
1893 (* Pick a file from cwd which isn't likely to change. *)
1894 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1895 ["checksum"; "md5"; "/COPYING.LIB"]],
1896 Digest.to_hex (Digest.file "COPYING.LIB"))],
1897 "upload a file from the local machine",
1899 Upload local file C<filename> to C<remotefilename> on the
1902 C<filename> can also be a named pipe.
1904 See also C<guestfs_download>.");
1906 ("download", (RErr, [Dev_or_Path "remotefilename"; FileOut "filename"]), 67, [],
1907 [InitBasicFS, Always, TestOutput (
1908 (* Pick a file from cwd which isn't likely to change. *)
1909 [["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
1910 ["download"; "/COPYING.LIB"; "testdownload.tmp"];
1911 ["upload"; "testdownload.tmp"; "/upload"];
1912 ["checksum"; "md5"; "/upload"]],
1913 Digest.to_hex (Digest.file "COPYING.LIB"))],
1914 "download a file to the local machine",
1916 Download file C<remotefilename> and save it as C<filename>
1917 on the local machine.
1919 C<filename> can also be a named pipe.
1921 See also C<guestfs_upload>, C<guestfs_cat>.");
1923 ("checksum", (RString "checksum", [String "csumtype"; Pathname "path"]), 68, [],
1924 [InitISOFS, Always, TestOutput (
1925 [["checksum"; "crc"; "/known-3"]], "2891671662");
1926 InitISOFS, Always, TestLastFail (
1927 [["checksum"; "crc"; "/notexists"]]);
1928 InitISOFS, Always, TestOutput (
1929 [["checksum"; "md5"; "/known-3"]], "46d6ca27ee07cdc6fa99c2e138cc522c");
1930 InitISOFS, Always, TestOutput (
1931 [["checksum"; "sha1"; "/known-3"]], "b7ebccc3ee418311091c3eda0a45b83c0a770f15");
1932 InitISOFS, Always, TestOutput (
1933 [["checksum"; "sha224"; "/known-3"]], "d2cd1774b28f3659c14116be0a6dc2bb5c4b350ce9cd5defac707741");
1934 InitISOFS, Always, TestOutput (
1935 [["checksum"; "sha256"; "/known-3"]], "75bb71b90cd20cb13f86d2bea8dad63ac7194e7517c3b52b8d06ff52d3487d30");
1936 InitISOFS, Always, TestOutput (
1937 [["checksum"; "sha384"; "/known-3"]], "5fa7883430f357b5d7b7271d3a1d2872b51d73cba72731de6863d3dea55f30646af2799bef44d5ea776a5ec7941ac640");
1938 InitISOFS, Always, TestOutput (
1939 [["checksum"; "sha512"; "/known-3"]], "2794062c328c6b216dca90443b7f7134c5f40e56bd0ed7853123275a09982a6f992e6ca682f9d2fba34a4c5e870d8fe077694ff831e3032a004ee077e00603f6")],
1940 "compute MD5, SHAx or CRC checksum of file",
1942 This call computes the MD5, SHAx or CRC checksum of the
1945 The type of checksum to compute is given by the C<csumtype>
1946 parameter which must have one of the following values:
1952 Compute the cyclic redundancy check (CRC) specified by POSIX
1953 for the C<cksum> command.
1957 Compute the MD5 hash (using the C<md5sum> program).
1961 Compute the SHA1 hash (using the C<sha1sum> program).
1965 Compute the SHA224 hash (using the C<sha224sum> program).
1969 Compute the SHA256 hash (using the C<sha256sum> program).
1973 Compute the SHA384 hash (using the C<sha384sum> program).
1977 Compute the SHA512 hash (using the C<sha512sum> program).
1981 The checksum is returned as a printable string.");
1983 ("tar_in", (RErr, [FileIn "tarfile"; String "directory"]), 69, [],
1984 [InitBasicFS, Always, TestOutput (
1985 [["tar_in"; "../images/helloworld.tar"; "/"];
1986 ["cat"; "/hello"]], "hello\n")],
1987 "unpack tarfile to directory",
1989 This command uploads and unpacks local file C<tarfile> (an
1990 I<uncompressed> tar file) into C<directory>.
1992 To upload a compressed tarball, use C<guestfs_tgz_in>.");
1994 ("tar_out", (RErr, [String "directory"; FileOut "tarfile"]), 70, [],
1996 "pack directory into tarfile",
1998 This command packs the contents of C<directory> and downloads
1999 it to local file C<tarfile>.
2001 To download a compressed tarball, use C<guestfs_tgz_out>.");
2003 ("tgz_in", (RErr, [FileIn "tarball"; String "directory"]), 71, [],
2004 [InitBasicFS, Always, TestOutput (
2005 [["tgz_in"; "../images/helloworld.tar.gz"; "/"];
2006 ["cat"; "/hello"]], "hello\n")],
2007 "unpack compressed tarball to directory",
2009 This command uploads and unpacks local file C<tarball> (a
2010 I<gzip compressed> tar file) into C<directory>.
2012 To upload an uncompressed tarball, use C<guestfs_tar_in>.");
2014 ("tgz_out", (RErr, [Pathname "directory"; FileOut "tarball"]), 72, [],
2016 "pack directory into compressed tarball",
2018 This command packs the contents of C<directory> and downloads
2019 it to local file C<tarball>.
2021 To download an uncompressed tarball, use C<guestfs_tar_out>.");
2023 ("mount_ro", (RErr, [Device "device"; String "mountpoint"]), 73, [],
2024 [InitBasicFS, Always, TestLastFail (
2026 ["mount_ro"; "/dev/sda1"; "/"];
2027 ["touch"; "/new"]]);
2028 InitBasicFS, Always, TestOutput (
2029 [["write_file"; "/new"; "data"; "0"];
2031 ["mount_ro"; "/dev/sda1"; "/"];
2032 ["cat"; "/new"]], "data")],
2033 "mount a guest disk, read-only",
2035 This is the same as the C<guestfs_mount> command, but it
2036 mounts the filesystem with the read-only (I<-o ro>) flag.");
2038 ("mount_options", (RErr, [String "options"; Device "device"; String "mountpoint"]), 74, [],
2040 "mount a guest disk with mount options",
2042 This is the same as the C<guestfs_mount> command, but it
2043 allows you to set the mount options as for the
2044 L<mount(8)> I<-o> flag.");
2046 ("mount_vfs", (RErr, [String "options"; String "vfstype"; Device "device"; String "mountpoint"]), 75, [],
2048 "mount a guest disk with mount options and vfstype",
2050 This is the same as the C<guestfs_mount> command, but it
2051 allows you to set both the mount options and the vfstype
2052 as for the L<mount(8)> I<-o> and I<-t> flags.");
2054 ("debug", (RString "result", [String "subcmd"; StringList "extraargs"]), 76, [],
2056 "debugging and internals",
2058 The C<guestfs_debug> command exposes some internals of
2059 C<guestfsd> (the guestfs daemon) that runs inside the
2062 There is no comprehensive help for this command. You have
2063 to look at the file C<daemon/debug.c> in the libguestfs source
2064 to find out what you can do.");
2066 ("lvremove", (RErr, [Device "device"]), 77, [Optional "lvm2"],
2067 [InitEmpty, Always, TestOutputList (
2068 [["part_disk"; "/dev/sda"; "mbr"];
2069 ["pvcreate"; "/dev/sda1"];
2070 ["vgcreate"; "VG"; "/dev/sda1"];
2071 ["lvcreate"; "LV1"; "VG"; "50"];
2072 ["lvcreate"; "LV2"; "VG"; "50"];
2073 ["lvremove"; "/dev/VG/LV1"];
2074 ["lvs"]], ["/dev/VG/LV2"]);
2075 InitEmpty, Always, TestOutputList (
2076 [["part_disk"; "/dev/sda"; "mbr"];
2077 ["pvcreate"; "/dev/sda1"];
2078 ["vgcreate"; "VG"; "/dev/sda1"];
2079 ["lvcreate"; "LV1"; "VG"; "50"];
2080 ["lvcreate"; "LV2"; "VG"; "50"];
2081 ["lvremove"; "/dev/VG"];
2083 InitEmpty, Always, TestOutputList (
2084 [["part_disk"; "/dev/sda"; "mbr"];
2085 ["pvcreate"; "/dev/sda1"];
2086 ["vgcreate"; "VG"; "/dev/sda1"];
2087 ["lvcreate"; "LV1"; "VG"; "50"];
2088 ["lvcreate"; "LV2"; "VG"; "50"];
2089 ["lvremove"; "/dev/VG"];
2091 "remove an LVM logical volume",
2093 Remove an LVM logical volume C<device>, where C<device> is
2094 the path to the LV, such as C</dev/VG/LV>.
2096 You can also remove all LVs in a volume group by specifying
2097 the VG name, C</dev/VG>.");
2099 ("vgremove", (RErr, [String "vgname"]), 78, [Optional "lvm2"],
2100 [InitEmpty, Always, TestOutputList (
2101 [["part_disk"; "/dev/sda"; "mbr"];
2102 ["pvcreate"; "/dev/sda1"];
2103 ["vgcreate"; "VG"; "/dev/sda1"];
2104 ["lvcreate"; "LV1"; "VG"; "50"];
2105 ["lvcreate"; "LV2"; "VG"; "50"];
2108 InitEmpty, Always, TestOutputList (
2109 [["part_disk"; "/dev/sda"; "mbr"];
2110 ["pvcreate"; "/dev/sda1"];
2111 ["vgcreate"; "VG"; "/dev/sda1"];
2112 ["lvcreate"; "LV1"; "VG"; "50"];
2113 ["lvcreate"; "LV2"; "VG"; "50"];
2116 "remove an LVM volume group",
2118 Remove an LVM volume group C<vgname>, (for example C<VG>).
2120 This also forcibly removes all logical volumes in the volume
2123 ("pvremove", (RErr, [Device "device"]), 79, [Optional "lvm2"],
2124 [InitEmpty, Always, TestOutputListOfDevices (
2125 [["part_disk"; "/dev/sda"; "mbr"];
2126 ["pvcreate"; "/dev/sda1"];
2127 ["vgcreate"; "VG"; "/dev/sda1"];
2128 ["lvcreate"; "LV1"; "VG"; "50"];
2129 ["lvcreate"; "LV2"; "VG"; "50"];
2131 ["pvremove"; "/dev/sda1"];
2133 InitEmpty, Always, TestOutputListOfDevices (
2134 [["part_disk"; "/dev/sda"; "mbr"];
2135 ["pvcreate"; "/dev/sda1"];
2136 ["vgcreate"; "VG"; "/dev/sda1"];
2137 ["lvcreate"; "LV1"; "VG"; "50"];
2138 ["lvcreate"; "LV2"; "VG"; "50"];
2140 ["pvremove"; "/dev/sda1"];
2142 InitEmpty, Always, TestOutputListOfDevices (
2143 [["part_disk"; "/dev/sda"; "mbr"];
2144 ["pvcreate"; "/dev/sda1"];
2145 ["vgcreate"; "VG"; "/dev/sda1"];
2146 ["lvcreate"; "LV1"; "VG"; "50"];
2147 ["lvcreate"; "LV2"; "VG"; "50"];
2149 ["pvremove"; "/dev/sda1"];
2151 "remove an LVM physical volume",
2153 This wipes a physical volume C<device> so that LVM will no longer
2156 The implementation uses the C<pvremove> command which refuses to
2157 wipe physical volumes that contain any volume groups, so you have
2158 to remove those first.");
2160 ("set_e2label", (RErr, [Device "device"; String "label"]), 80, [],
2161 [InitBasicFS, Always, TestOutput (
2162 [["set_e2label"; "/dev/sda1"; "testlabel"];
2163 ["get_e2label"; "/dev/sda1"]], "testlabel")],
2164 "set the ext2/3/4 filesystem label",
2166 This sets the ext2/3/4 filesystem label of the filesystem on
2167 C<device> to C<label>. Filesystem labels are limited to
2170 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2label>
2171 to return the existing label on a filesystem.");
2173 ("get_e2label", (RString "label", [Device "device"]), 81, [],
2175 "get the ext2/3/4 filesystem label",
2177 This returns the ext2/3/4 filesystem label of the filesystem on
2180 ("set_e2uuid", (RErr, [Device "device"; String "uuid"]), 82, [],
2181 (let uuid = uuidgen () in
2182 [InitBasicFS, Always, TestOutput (
2183 [["set_e2uuid"; "/dev/sda1"; uuid];
2184 ["get_e2uuid"; "/dev/sda1"]], uuid);
2185 InitBasicFS, Always, TestOutput (
2186 [["set_e2uuid"; "/dev/sda1"; "clear"];
2187 ["get_e2uuid"; "/dev/sda1"]], "");
2188 (* We can't predict what UUIDs will be, so just check the commands run. *)
2189 InitBasicFS, Always, TestRun (
2190 [["set_e2uuid"; "/dev/sda1"; "random"]]);
2191 InitBasicFS, Always, TestRun (
2192 [["set_e2uuid"; "/dev/sda1"; "time"]])]),
2193 "set the ext2/3/4 filesystem UUID",
2195 This sets the ext2/3/4 filesystem UUID of the filesystem on
2196 C<device> to C<uuid>. The format of the UUID and alternatives
2197 such as C<clear>, C<random> and C<time> are described in the
2198 L<tune2fs(8)> manpage.
2200 You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2uuid>
2201 to return the existing UUID of a filesystem.");
2203 ("get_e2uuid", (RString "uuid", [Device "device"]), 83, [],
2205 "get the ext2/3/4 filesystem UUID",
2207 This returns the ext2/3/4 filesystem UUID of the filesystem on
2210 ("fsck", (RInt "status", [String "fstype"; Device "device"]), 84, [],
2211 [InitBasicFS, Always, TestOutputInt (
2212 [["umount"; "/dev/sda1"];
2213 ["fsck"; "ext2"; "/dev/sda1"]], 0);
2214 InitBasicFS, Always, TestOutputInt (
2215 [["umount"; "/dev/sda1"];
2216 ["zero"; "/dev/sda1"];
2217 ["fsck"; "ext2"; "/dev/sda1"]], 8)],
2218 "run the filesystem checker",
2220 This runs the filesystem checker (fsck) on C<device> which
2221 should have filesystem type C<fstype>.
2223 The returned integer is the status. See L<fsck(8)> for the
2224 list of status codes from C<fsck>.
2232 Multiple status codes can be summed together.
2236 A non-zero return code can mean \"success\", for example if
2237 errors have been corrected on the filesystem.
2241 Checking or repairing NTFS volumes is not supported
2246 This command is entirely equivalent to running C<fsck -a -t fstype device>.");
2248 ("zero", (RErr, [Device "device"]), 85, [],
2249 [InitBasicFS, Always, TestOutput (
2250 [["umount"; "/dev/sda1"];
2251 ["zero"; "/dev/sda1"];
2252 ["file"; "/dev/sda1"]], "data")],
2253 "write zeroes to the device",
2255 This command writes zeroes over the first few blocks of C<device>.
2257 How many blocks are zeroed isn't specified (but it's I<not> enough
2258 to securely wipe the device). It should be sufficient to remove
2259 any partition tables, filesystem superblocks and so on.
2261 See also: C<guestfs_scrub_device>.");
2263 ("grub_install", (RErr, [Pathname "root"; Device "device"]), 86, [],
2264 (* Test disabled because grub-install incompatible with virtio-blk driver.
2265 * See also: https://bugzilla.redhat.com/show_bug.cgi?id=479760
2267 [InitBasicFS, Disabled, TestOutputTrue (
2268 [["grub_install"; "/"; "/dev/sda1"];
2269 ["is_dir"; "/boot"]])],
2272 This command installs GRUB (the Grand Unified Bootloader) on
2273 C<device>, with the root directory being C<root>.");
2275 ("cp", (RErr, [Pathname "src"; Pathname "dest"]), 87, [],
2276 [InitBasicFS, Always, TestOutput (
2277 [["write_file"; "/old"; "file content"; "0"];
2278 ["cp"; "/old"; "/new"];
2279 ["cat"; "/new"]], "file content");
2280 InitBasicFS, Always, TestOutputTrue (
2281 [["write_file"; "/old"; "file content"; "0"];
2282 ["cp"; "/old"; "/new"];
2283 ["is_file"; "/old"]]);
2284 InitBasicFS, Always, TestOutput (
2285 [["write_file"; "/old"; "file content"; "0"];
2287 ["cp"; "/old"; "/dir/new"];
2288 ["cat"; "/dir/new"]], "file content")],
2291 This copies a file from C<src> to C<dest> where C<dest> is
2292 either a destination filename or destination directory.");
2294 ("cp_a", (RErr, [Pathname "src"; Pathname "dest"]), 88, [],
2295 [InitBasicFS, Always, TestOutput (
2296 [["mkdir"; "/olddir"];
2297 ["mkdir"; "/newdir"];
2298 ["write_file"; "/olddir/file"; "file content"; "0"];
2299 ["cp_a"; "/olddir"; "/newdir"];
2300 ["cat"; "/newdir/olddir/file"]], "file content")],
2301 "copy a file or directory recursively",
2303 This copies a file or directory from C<src> to C<dest>
2304 recursively using the C<cp -a> command.");
2306 ("mv", (RErr, [Pathname "src"; Pathname "dest"]), 89, [],
2307 [InitBasicFS, Always, TestOutput (
2308 [["write_file"; "/old"; "file content"; "0"];
2309 ["mv"; "/old"; "/new"];
2310 ["cat"; "/new"]], "file content");
2311 InitBasicFS, Always, TestOutputFalse (
2312 [["write_file"; "/old"; "file content"; "0"];
2313 ["mv"; "/old"; "/new"];
2314 ["is_file"; "/old"]])],
2317 This moves a file from C<src> to C<dest> where C<dest> is
2318 either a destination filename or destination directory.");
2320 ("drop_caches", (RErr, [Int "whattodrop"]), 90, [],
2321 [InitEmpty, Always, TestRun (
2322 [["drop_caches"; "3"]])],
2323 "drop kernel page cache, dentries and inodes",
2325 This instructs the guest kernel to drop its page cache,
2326 and/or dentries and inode caches. The parameter C<whattodrop>
2327 tells the kernel what precisely to drop, see
2328 L<http://linux-mm.org/Drop_Caches>
2330 Setting C<whattodrop> to 3 should drop everything.
2332 This automatically calls L<sync(2)> before the operation,
2333 so that the maximum guest memory is freed.");
2335 ("dmesg", (RString "kmsgs", []), 91, [],
2336 [InitEmpty, Always, TestRun (
2338 "return kernel messages",
2340 This returns the kernel messages (C<dmesg> output) from
2341 the guest kernel. This is sometimes useful for extended
2342 debugging of problems.
2344 Another way to get the same information is to enable
2345 verbose messages with C<guestfs_set_verbose> or by setting
2346 the environment variable C<LIBGUESTFS_DEBUG=1> before
2347 running the program.");
2349 ("ping_daemon", (RErr, []), 92, [],
2350 [InitEmpty, Always, TestRun (
2351 [["ping_daemon"]])],
2352 "ping the guest daemon",
2354 This is a test probe into the guestfs daemon running inside
2355 the qemu subprocess. Calling this function checks that the
2356 daemon responds to the ping message, without affecting the daemon
2357 or attached block device(s) in any other way.");
2359 ("equal", (RBool "equality", [Pathname "file1"; Pathname "file2"]), 93, [],
2360 [InitBasicFS, Always, TestOutputTrue (
2361 [["write_file"; "/file1"; "contents of a file"; "0"];
2362 ["cp"; "/file1"; "/file2"];
2363 ["equal"; "/file1"; "/file2"]]);
2364 InitBasicFS, Always, TestOutputFalse (
2365 [["write_file"; "/file1"; "contents of a file"; "0"];
2366 ["write_file"; "/file2"; "contents of another file"; "0"];
2367 ["equal"; "/file1"; "/file2"]]);
2368 InitBasicFS, Always, TestLastFail (
2369 [["equal"; "/file1"; "/file2"]])],
2370 "test if two files have equal contents",
2372 This compares the two files C<file1> and C<file2> and returns
2373 true if their content is exactly equal, or false otherwise.
2375 The external L<cmp(1)> program is used for the comparison.");
2377 ("strings", (RStringList "stringsout", [Pathname "path"]), 94, [ProtocolLimitWarning],
2378 [InitISOFS, Always, TestOutputList (
2379 [["strings"; "/known-5"]], ["abcdefghi"; "jklmnopqr"]);
2380 InitISOFS, Always, TestOutputList (
2381 [["strings"; "/empty"]], [])],
2382 "print the printable strings in a file",
2384 This runs the L<strings(1)> command on a file and returns
2385 the list of printable strings found.");
2387 ("strings_e", (RStringList "stringsout", [String "encoding"; Pathname "path"]), 95, [ProtocolLimitWarning],
2388 [InitISOFS, Always, TestOutputList (
2389 [["strings_e"; "b"; "/known-5"]], []);
2390 InitBasicFS, Disabled, TestOutputList (
2391 [["write_file"; "/new"; "\000h\000e\000l\000l\000o\000\n\000w\000o\000r\000l\000d\000\n"; "24"];
2392 ["strings_e"; "b"; "/new"]], ["hello"; "world"])],
2393 "print the printable strings in a file",
2395 This is like the C<guestfs_strings> command, but allows you to
2396 specify the encoding.
2398 See the L<strings(1)> manpage for the full list of encodings.
2400 Commonly useful encodings are C<l> (lower case L) which will
2401 show strings inside Windows/x86 files.
2403 The returned strings are transcoded to UTF-8.");
2405 ("hexdump", (RString "dump", [Pathname "path"]), 96, [ProtocolLimitWarning],
2406 [InitISOFS, Always, TestOutput (
2407 [["hexdump"; "/known-4"]], "00000000 61 62 63 0a 64 65 66 0a 67 68 69 |abc.def.ghi|\n0000000b\n");
2408 (* Test for RHBZ#501888c2 regression which caused large hexdump
2409 * commands to segfault.
2411 InitISOFS, Always, TestRun (
2412 [["hexdump"; "/100krandom"]])],
2413 "dump a file in hexadecimal",
2415 This runs C<hexdump -C> on the given C<path>. The result is
2416 the human-readable, canonical hex dump of the file.");
2418 ("zerofree", (RErr, [Device "device"]), 97, [Optional "zerofree"],
2419 [InitNone, Always, TestOutput (
2420 [["part_disk"; "/dev/sda"; "mbr"];
2421 ["mkfs"; "ext3"; "/dev/sda1"];
2422 ["mount_options"; ""; "/dev/sda1"; "/"];
2423 ["write_file"; "/new"; "test file"; "0"];
2424 ["umount"; "/dev/sda1"];
2425 ["zerofree"; "/dev/sda1"];
2426 ["mount_options"; ""; "/dev/sda1"; "/"];
2427 ["cat"; "/new"]], "test file")],
2428 "zero unused inodes and disk blocks on ext2/3 filesystem",
2430 This runs the I<zerofree> program on C<device>. This program
2431 claims to zero unused inodes and disk blocks on an ext2/3
2432 filesystem, thus making it possible to compress the filesystem
2435 You should B<not> run this program if the filesystem is
2438 It is possible that using this program can damage the filesystem
2439 or data on the filesystem.");
2441 ("pvresize", (RErr, [Device "device"]), 98, [Optional "lvm2"],
2443 "resize an LVM physical volume",
2445 This resizes (expands or shrinks) an existing LVM physical
2446 volume to match the new size of the underlying device.");
2448 ("sfdisk_N", (RErr, [Device "device"; Int "partnum";
2449 Int "cyls"; Int "heads"; Int "sectors";
2450 String "line"]), 99, [DangerWillRobinson],
2452 "modify a single partition on a block device",
2454 This runs L<sfdisk(8)> option to modify just the single
2455 partition C<n> (note: C<n> counts from 1).
2457 For other parameters, see C<guestfs_sfdisk>. You should usually
2458 pass C<0> for the cyls/heads/sectors parameters.
2460 See also: C<guestfs_part_add>");
2462 ("sfdisk_l", (RString "partitions", [Device "device"]), 100, [],
2464 "display the partition table",
2466 This displays the partition table on C<device>, in the
2467 human-readable output of the L<sfdisk(8)> command. It is
2468 not intended to be parsed.
2470 See also: C<guestfs_part_list>");
2472 ("sfdisk_kernel_geometry", (RString "partitions", [Device "device"]), 101, [],
2474 "display the kernel geometry",
2476 This displays the kernel's idea of the geometry of C<device>.
2478 The result is in human-readable format, and not designed to
2481 ("sfdisk_disk_geometry", (RString "partitions", [Device "device"]), 102, [],
2483 "display the disk geometry from the partition table",
2485 This displays the disk geometry of C<device> read from the
2486 partition table. Especially in the case where the underlying
2487 block device has been resized, this can be different from the
2488 kernel's idea of the geometry (see C<guestfs_sfdisk_kernel_geometry>).
2490 The result is in human-readable format, and not designed to
2493 ("vg_activate_all", (RErr, [Bool "activate"]), 103, [Optional "lvm2"],
2495 "activate or deactivate all volume groups",
2497 This command activates or (if C<activate> is false) deactivates
2498 all logical volumes in all volume groups.
2499 If activated, then they are made known to the
2500 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2501 then those devices disappear.
2503 This command is the same as running C<vgchange -a y|n>");
2505 ("vg_activate", (RErr, [Bool "activate"; StringList "volgroups"]), 104, [Optional "lvm2"],
2507 "activate or deactivate some volume groups",
2509 This command activates or (if C<activate> is false) deactivates
2510 all logical volumes in the listed volume groups C<volgroups>.
2511 If activated, then they are made known to the
2512 kernel, ie. they appear as C</dev/mapper> devices. If deactivated,
2513 then those devices disappear.
2515 This command is the same as running C<vgchange -a y|n volgroups...>
2517 Note that if C<volgroups> is an empty list then B<all> volume groups
2518 are activated or deactivated.");
2520 ("lvresize", (RErr, [Device "device"; Int "mbytes"]), 105, [Optional "lvm2"],
2521 [InitNone, Always, TestOutput (
2522 [["part_disk"; "/dev/sda"; "mbr"];
2523 ["pvcreate"; "/dev/sda1"];
2524 ["vgcreate"; "VG"; "/dev/sda1"];
2525 ["lvcreate"; "LV"; "VG"; "10"];
2526 ["mkfs"; "ext2"; "/dev/VG/LV"];
2527 ["mount_options"; ""; "/dev/VG/LV"; "/"];
2528 ["write_file"; "/new"; "test content"; "0"];
2530 ["lvresize"; "/dev/VG/LV"; "20"];
2531 ["e2fsck_f"; "/dev/VG/LV"];
2532 ["resize2fs"; "/dev/VG/LV"];
2533 ["mount_options"; ""; "/dev/VG/LV"; "/"];
2534 ["cat"; "/new"]], "test content")],
2535 "resize an LVM logical volume",
2537 This resizes (expands or shrinks) an existing LVM logical
2538 volume to C<mbytes>. When reducing, data in the reduced part
2541 ("resize2fs", (RErr, [Device "device"]), 106, [],
2542 [], (* lvresize tests this *)
2543 "resize an ext2/ext3 filesystem",
2545 This resizes an ext2 or ext3 filesystem to match the size of
2546 the underlying device.
2548 I<Note:> It is sometimes required that you run C<guestfs_e2fsck_f>
2549 on the C<device> before calling this command. For unknown reasons
2550 C<resize2fs> sometimes gives an error about this and sometimes not.
2551 In any case, it is always safe to call C<guestfs_e2fsck_f> before
2552 calling this function.");
2554 ("find", (RStringList "names", [Pathname "directory"]), 107, [ProtocolLimitWarning],
2555 [InitBasicFS, Always, TestOutputList (
2556 [["find"; "/"]], ["lost+found"]);
2557 InitBasicFS, Always, TestOutputList (
2561 ["find"; "/"]], ["a"; "b"; "b/c"; "lost+found"]);
2562 InitBasicFS, Always, TestOutputList (
2563 [["mkdir_p"; "/a/b/c"];
2564 ["touch"; "/a/b/c/d"];
2565 ["find"; "/a/b/"]], ["c"; "c/d"])],
2566 "find all files and directories",
2568 This command lists out all files and directories, recursively,
2569 starting at C<directory>. It is essentially equivalent to
2570 running the shell command C<find directory -print> but some
2571 post-processing happens on the output, described below.
2573 This returns a list of strings I<without any prefix>. Thus
2574 if the directory structure was:
2580 then the returned list from C<guestfs_find> C</tmp> would be
2588 If C<directory> is not a directory, then this command returns
2591 The returned list is sorted.
2593 See also C<guestfs_find0>.");
2595 ("e2fsck_f", (RErr, [Device "device"]), 108, [],
2596 [], (* lvresize tests this *)
2597 "check an ext2/ext3 filesystem",
2599 This runs C<e2fsck -p -f device>, ie. runs the ext2/ext3
2600 filesystem checker on C<device>, noninteractively (C<-p>),
2601 even if the filesystem appears to be clean (C<-f>).
2603 This command is only needed because of C<guestfs_resize2fs>
2604 (q.v.). Normally you should use C<guestfs_fsck>.");
2606 ("sleep", (RErr, [Int "secs"]), 109, [],
2607 [InitNone, Always, TestRun (
2609 "sleep for some seconds",
2611 Sleep for C<secs> seconds.");
2613 ("ntfs_3g_probe", (RInt "status", [Bool "rw"; Device "device"]), 110, [Optional "ntfs3g"],
2614 [InitNone, Always, TestOutputInt (
2615 [["part_disk"; "/dev/sda"; "mbr"];
2616 ["mkfs"; "ntfs"; "/dev/sda1"];
2617 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 0);
2618 InitNone, Always, TestOutputInt (
2619 [["part_disk"; "/dev/sda"; "mbr"];
2620 ["mkfs"; "ext2"; "/dev/sda1"];
2621 ["ntfs_3g_probe"; "true"; "/dev/sda1"]], 12)],
2622 "probe NTFS volume",
2624 This command runs the L<ntfs-3g.probe(8)> command which probes
2625 an NTFS C<device> for mountability. (Not all NTFS volumes can
2626 be mounted read-write, and some cannot be mounted at all).
2628 C<rw> is a boolean flag. Set it to true if you want to test
2629 if the volume can be mounted read-write. Set it to false if
2630 you want to test if the volume can be mounted read-only.
2632 The return value is an integer which C<0> if the operation
2633 would succeed, or some non-zero value documented in the
2634 L<ntfs-3g.probe(8)> manual page.");
2636 ("sh", (RString "output", [String "command"]), 111, [],
2637 [], (* XXX needs tests *)
2638 "run a command via the shell",
2640 This call runs a command from the guest filesystem via the
2643 This is like C<guestfs_command>, but passes the command to:
2645 /bin/sh -c \"command\"
2647 Depending on the guest's shell, this usually results in
2648 wildcards being expanded, shell expressions being interpolated
2651 All the provisos about C<guestfs_command> apply to this call.");
2653 ("sh_lines", (RStringList "lines", [String "command"]), 112, [],
2654 [], (* XXX needs tests *)
2655 "run a command via the shell returning lines",
2657 This is the same as C<guestfs_sh>, but splits the result
2658 into a list of lines.
2660 See also: C<guestfs_command_lines>");
2662 ("glob_expand", (RStringList "paths", [Pathname "pattern"]), 113, [],
2663 (* Use Pathname here, and hence ABS_PATH (pattern,... in generated
2664 * code in stubs.c, since all valid glob patterns must start with "/".
2665 * There is no concept of "cwd" in libguestfs, hence no "."-relative names.
2667 [InitBasicFS, Always, TestOutputList (
2668 [["mkdir_p"; "/a/b/c"];
2669 ["touch"; "/a/b/c/d"];
2670 ["touch"; "/a/b/c/e"];
2671 ["glob_expand"; "/a/b/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2672 InitBasicFS, Always, TestOutputList (
2673 [["mkdir_p"; "/a/b/c"];
2674 ["touch"; "/a/b/c/d"];
2675 ["touch"; "/a/b/c/e"];
2676 ["glob_expand"; "/a/*/c/*"]], ["/a/b/c/d"; "/a/b/c/e"]);
2677 InitBasicFS, Always, TestOutputList (
2678 [["mkdir_p"; "/a/b/c"];
2679 ["touch"; "/a/b/c/d"];
2680 ["touch"; "/a/b/c/e"];
2681 ["glob_expand"; "/a/*/x/*"]], [])],
2682 "expand a wildcard path",
2684 This command searches for all the pathnames matching
2685 C<pattern> according to the wildcard expansion rules
2688 If no paths match, then this returns an empty list
2689 (note: not an error).
2691 It is just a wrapper around the C L<glob(3)> function
2692 with flags C<GLOB_MARK|GLOB_BRACE>.
2693 See that manual page for more details.");
2695 ("scrub_device", (RErr, [Device "device"]), 114, [DangerWillRobinson; Optional "scrub"],
2696 [InitNone, Always, TestRun ( (* use /dev/sdc because it's smaller *)
2697 [["scrub_device"; "/dev/sdc"]])],
2698 "scrub (securely wipe) a device",
2700 This command writes patterns over C<device> to make data retrieval
2703 It is an interface to the L<scrub(1)> program. See that
2704 manual page for more details.");
2706 ("scrub_file", (RErr, [Pathname "file"]), 115, [Optional "scrub"],
2707 [InitBasicFS, Always, TestRun (
2708 [["write_file"; "/file"; "content"; "0"];
2709 ["scrub_file"; "/file"]])],
2710 "scrub (securely wipe) a file",
2712 This command writes patterns over a file to make data retrieval
2715 The file is I<removed> after scrubbing.
2717 It is an interface to the L<scrub(1)> program. See that
2718 manual page for more details.");
2720 ("scrub_freespace", (RErr, [Pathname "dir"]), 116, [Optional "scrub"],
2721 [], (* XXX needs testing *)
2722 "scrub (securely wipe) free space",
2724 This command creates the directory C<dir> and then fills it
2725 with files until the filesystem is full, and scrubs the files
2726 as for C<guestfs_scrub_file>, and deletes them.
2727 The intention is to scrub any free space on the partition
2730 It is an interface to the L<scrub(1)> program. See that
2731 manual page for more details.");
2733 ("mkdtemp", (RString "dir", [Pathname "template"]), 117, [],
2734 [InitBasicFS, Always, TestRun (
2736 ["mkdtemp"; "/tmp/tmpXXXXXX"]])],
2737 "create a temporary directory",
2739 This command creates a temporary directory. The
2740 C<template> parameter should be a full pathname for the
2741 temporary directory name with the final six characters being
2744 For example: \"/tmp/myprogXXXXXX\" or \"/Temp/myprogXXXXXX\",
2745 the second one being suitable for Windows filesystems.
2747 The name of the temporary directory that was created
2750 The temporary directory is created with mode 0700
2751 and is owned by root.
2753 The caller is responsible for deleting the temporary
2754 directory and its contents after use.
2756 See also: L<mkdtemp(3)>");
2758 ("wc_l", (RInt "lines", [Pathname "path"]), 118, [],
2759 [InitISOFS, Always, TestOutputInt (
2760 [["wc_l"; "/10klines"]], 10000)],
2761 "count lines in a file",
2763 This command counts the lines in a file, using the
2764 C<wc -l> external command.");
2766 ("wc_w", (RInt "words", [Pathname "path"]), 119, [],
2767 [InitISOFS, Always, TestOutputInt (
2768 [["wc_w"; "/10klines"]], 10000)],
2769 "count words in a file",
2771 This command counts the words in a file, using the
2772 C<wc -w> external command.");
2774 ("wc_c", (RInt "chars", [Pathname "path"]), 120, [],
2775 [InitISOFS, Always, TestOutputInt (
2776 [["wc_c"; "/100kallspaces"]], 102400)],
2777 "count characters in a file",
2779 This command counts the characters in a file, using the
2780 C<wc -c> external command.");
2782 ("head", (RStringList "lines", [Pathname "path"]), 121, [ProtocolLimitWarning],
2783 [InitISOFS, Always, TestOutputList (
2784 [["head"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"])],
2785 "return first 10 lines of a file",
2787 This command returns up to the first 10 lines of a file as
2788 a list of strings.");
2790 ("head_n", (RStringList "lines", [Int "nrlines"; Pathname "path"]), 122, [ProtocolLimitWarning],
2791 [InitISOFS, Always, TestOutputList (
2792 [["head_n"; "3"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2793 InitISOFS, Always, TestOutputList (
2794 [["head_n"; "-9997"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz"]);
2795 InitISOFS, Always, TestOutputList (
2796 [["head_n"; "0"; "/10klines"]], [])],
2797 "return first N lines of a file",
2799 If the parameter C<nrlines> is a positive number, this returns the first
2800 C<nrlines> lines of the file C<path>.
2802 If the parameter C<nrlines> is a negative number, this returns lines
2803 from the file C<path>, excluding the last C<nrlines> lines.
2805 If the parameter C<nrlines> is zero, this returns an empty list.");
2807 ("tail", (RStringList "lines", [Pathname "path"]), 123, [ProtocolLimitWarning],
2808 [InitISOFS, Always, TestOutputList (
2809 [["tail"; "/10klines"]], ["9990abcdefghijklmnopqrstuvwxyz";"9991abcdefghijklmnopqrstuvwxyz";"9992abcdefghijklmnopqrstuvwxyz";"9993abcdefghijklmnopqrstuvwxyz";"9994abcdefghijklmnopqrstuvwxyz";"9995abcdefghijklmnopqrstuvwxyz";"9996abcdefghijklmnopqrstuvwxyz";"9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"])],
2810 "return last 10 lines of a file",
2812 This command returns up to the last 10 lines of a file as
2813 a list of strings.");
2815 ("tail_n", (RStringList "lines", [Int "nrlines"; Pathname "path"]), 124, [ProtocolLimitWarning],
2816 [InitISOFS, Always, TestOutputList (
2817 [["tail_n"; "3"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2818 InitISOFS, Always, TestOutputList (
2819 [["tail_n"; "-9998"; "/10klines"]], ["9997abcdefghijklmnopqrstuvwxyz";"9998abcdefghijklmnopqrstuvwxyz";"9999abcdefghijklmnopqrstuvwxyz"]);
2820 InitISOFS, Always, TestOutputList (
2821 [["tail_n"; "0"; "/10klines"]], [])],
2822 "return last N lines of a file",
2824 If the parameter C<nrlines> is a positive number, this returns the last
2825 C<nrlines> lines of the file C<path>.
2827 If the parameter C<nrlines> is a negative number, this returns lines
2828 from the file C<path>, starting with the C<-nrlines>th line.
2830 If the parameter C<nrlines> is zero, this returns an empty list.");
2832 ("df", (RString "output", []), 125, [],
2833 [], (* XXX Tricky to test because it depends on the exact format
2834 * of the 'df' command and other imponderables.
2836 "report file system disk space usage",
2838 This command runs the C<df> command to report disk space used.
2840 This command is mostly useful for interactive sessions. It
2841 is I<not> intended that you try to parse the output string.
2842 Use C<statvfs> from programs.");
2844 ("df_h", (RString "output", []), 126, [],
2845 [], (* XXX Tricky to test because it depends on the exact format
2846 * of the 'df' command and other imponderables.
2848 "report file system disk space usage (human readable)",
2850 This command runs the C<df -h> command to report disk space used
2851 in human-readable format.
2853 This command is mostly useful for interactive sessions. It
2854 is I<not> intended that you try to parse the output string.
2855 Use C<statvfs> from programs.");
2857 ("du", (RInt64 "sizekb", [Pathname "path"]), 127, [],
2858 [InitISOFS, Always, TestOutputInt (
2859 [["du"; "/directory"]], 2 (* ISO fs blocksize is 2K *))],
2860 "estimate file space usage",
2862 This command runs the C<du -s> command to estimate file space
2865 C<path> can be a file or a directory. If C<path> is a directory
2866 then the estimate includes the contents of the directory and all
2867 subdirectories (recursively).
2869 The result is the estimated size in I<kilobytes>
2870 (ie. units of 1024 bytes).");
2872 ("initrd_list", (RStringList "filenames", [Pathname "path"]), 128, [],
2873 [InitISOFS, Always, TestOutputList (
2874 [["initrd_list"; "/initrd"]], ["empty";"known-1";"known-2";"known-3";"known-4"; "known-5"])],
2875 "list files in an initrd",
2877 This command lists out files contained in an initrd.
2879 The files are listed without any initial C</> character. The
2880 files are listed in the order they appear (not necessarily
2881 alphabetical). Directory names are listed as separate items.
2883 Old Linux kernels (2.4 and earlier) used a compressed ext2
2884 filesystem as initrd. We I<only> support the newer initramfs
2885 format (compressed cpio files).");
2887 ("mount_loop", (RErr, [Pathname "file"; Pathname "mountpoint"]), 129, [],
2889 "mount a file using the loop device",
2891 This command lets you mount C<file> (a filesystem image
2892 in a file) on a mount point. It is entirely equivalent to
2893 the command C<mount -o loop file mountpoint>.");
2895 ("mkswap", (RErr, [Device "device"]), 130, [],
2896 [InitEmpty, Always, TestRun (
2897 [["part_disk"; "/dev/sda"; "mbr"];
2898 ["mkswap"; "/dev/sda1"]])],
2899 "create a swap partition",
2901 Create a swap partition on C<device>.");
2903 ("mkswap_L", (RErr, [String "label"; Device "device"]), 131, [],
2904 [InitEmpty, Always, TestRun (
2905 [["part_disk"; "/dev/sda"; "mbr"];
2906 ["mkswap_L"; "hello"; "/dev/sda1"]])],
2907 "create a swap partition with a label",
2909 Create a swap partition on C<device> with label C<label>.
2911 Note that you cannot attach a swap label to a block device
2912 (eg. C</dev/sda>), just to a partition. This appears to be
2913 a limitation of the kernel or swap tools.");
2915 ("mkswap_U", (RErr, [String "uuid"; Device "device"]), 132, [Optional "linuxfsuuid"],
2916 (let uuid = uuidgen () in
2917 [InitEmpty, Always, TestRun (
2918 [["part_disk"; "/dev/sda"; "mbr"];
2919 ["mkswap_U"; uuid; "/dev/sda1"]])]),
2920 "create a swap partition with an explicit UUID",
2922 Create a swap partition on C<device> with UUID C<uuid>.");
2924 ("mknod", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 133, [Optional "mknod"],
2925 [InitBasicFS, Always, TestOutputStruct (
2926 [["mknod"; "0o10777"; "0"; "0"; "/node"];
2927 (* NB: default umask 022 means 0777 -> 0755 in these tests *)
2928 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)]);
2929 InitBasicFS, Always, TestOutputStruct (
2930 [["mknod"; "0o60777"; "66"; "99"; "/node"];
2931 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
2932 "make block, character or FIFO devices",
2934 This call creates block or character special devices, or
2935 named pipes (FIFOs).
2937 The C<mode> parameter should be the mode, using the standard
2938 constants. C<devmajor> and C<devminor> are the
2939 device major and minor numbers, only used when creating block
2940 and character special devices.");
2942 ("mkfifo", (RErr, [Int "mode"; Pathname "path"]), 134, [Optional "mknod"],
2943 [InitBasicFS, Always, TestOutputStruct (
2944 [["mkfifo"; "0o777"; "/node"];
2945 ["stat"; "/node"]], [CompareWithInt ("mode", 0o10755)])],
2946 "make FIFO (named pipe)",
2948 This call creates a FIFO (named pipe) called C<path> with
2949 mode C<mode>. It is just a convenient wrapper around
2950 C<guestfs_mknod>.");
2952 ("mknod_b", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 135, [Optional "mknod"],
2953 [InitBasicFS, Always, TestOutputStruct (
2954 [["mknod_b"; "0o777"; "99"; "66"; "/node"];
2955 ["stat"; "/node"]], [CompareWithInt ("mode", 0o60755)])],
2956 "make block device node",
2958 This call creates a block device node called C<path> with
2959 mode C<mode> and device major/minor C<devmajor> and C<devminor>.
2960 It is just a convenient wrapper around C<guestfs_mknod>.");
2962 ("mknod_c", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 136, [Optional "mknod"],
2963 [InitBasicFS, Always, TestOutputStruct (
2964 [["mknod_c"; "0o777"; "99"; "66"; "/node"];
2965 ["stat"; "/node"]], [CompareWithInt ("mode", 0o20755)])],
2966 "make char device node",
2968 This call creates a char device node called C<path> with
2969 mode C<mode> and device major/minor C<devmajor> and C<devminor>.
2970 It is just a convenient wrapper around C<guestfs_mknod>.");
2972 ("umask", (RInt "oldmask", [Int "mask"]), 137, [],
2973 [], (* XXX umask is one of those stateful things that we should
2974 * reset between each test.
2976 "set file mode creation mask (umask)",
2978 This function sets the mask used for creating new files and
2979 device nodes to C<mask & 0777>.
2981 Typical umask values would be C<022> which creates new files
2982 with permissions like \"-rw-r--r--\" or \"-rwxr-xr-x\", and
2983 C<002> which creates new files with permissions like
2984 \"-rw-rw-r--\" or \"-rwxrwxr-x\".
2986 The default umask is C<022>. This is important because it
2987 means that directories and device nodes will be created with
2988 C<0644> or C<0755> mode even if you specify C<0777>.
2990 See also L<umask(2)>, C<guestfs_mknod>, C<guestfs_mkdir>.
2992 This call returns the previous umask.");
2994 ("readdir", (RStructList ("entries", "dirent"), [Pathname "dir"]), 138, [],
2996 "read directories entries",
2998 This returns the list of directory entries in directory C<dir>.
3000 All entries in the directory are returned, including C<.> and
3001 C<..>. The entries are I<not> sorted, but returned in the same
3002 order as the underlying filesystem.
3004 Also this call returns basic file type information about each
3005 file. The C<ftyp> field will contain one of the following characters:
3043 The L<readdir(3)> returned a C<d_type> field with an
3048 This function is primarily intended for use by programs. To
3049 get a simple list of names, use C<guestfs_ls>. To get a printable
3050 directory for human consumption, use C<guestfs_ll>.");
3052 ("sfdiskM", (RErr, [Device "device"; StringList "lines"]), 139, [DangerWillRobinson],
3054 "create partitions on a block device",
3056 This is a simplified interface to the C<guestfs_sfdisk>
3057 command, where partition sizes are specified in megabytes
3058 only (rounded to the nearest cylinder) and you don't need
3059 to specify the cyls, heads and sectors parameters which
3060 were rarely if ever used anyway.
3062 See also: C<guestfs_sfdisk>, the L<sfdisk(8)> manpage
3063 and C<guestfs_part_disk>");
3065 ("zfile", (RString "description", [String "meth"; Pathname "path"]), 140, [DeprecatedBy "file"],
3067 "determine file type inside a compressed file",
3069 This command runs C<file> after first decompressing C<path>
3072 C<method> must be one of C<gzip>, C<compress> or C<bzip2>.
3074 Since 1.0.63, use C<guestfs_file> instead which can now
3075 process compressed files.");
3077 ("getxattrs", (RStructList ("xattrs", "xattr"), [Pathname "path"]), 141, [Optional "linuxxattrs"],
3079 "list extended attributes of a file or directory",
3081 This call lists the extended attributes of the file or directory
3084 At the system call level, this is a combination of the
3085 L<listxattr(2)> and L<getxattr(2)> calls.
3087 See also: C<guestfs_lgetxattrs>, L<attr(5)>.");
3089 ("lgetxattrs", (RStructList ("xattrs", "xattr"), [Pathname "path"]), 142, [Optional "linuxxattrs"],
3091 "list extended attributes of a file or directory",
3093 This is the same as C<guestfs_getxattrs>, but if C<path>
3094 is a symbolic link, then it returns the extended attributes
3095 of the link itself.");
3097 ("setxattr", (RErr, [String "xattr";
3098 String "val"; Int "vallen"; (* will be BufferIn *)
3099 Pathname "path"]), 143, [Optional "linuxxattrs"],
3101 "set extended attribute of a file or directory",
3103 This call sets the extended attribute named C<xattr>
3104 of the file C<path> to the value C<val> (of length C<vallen>).
3105 The value is arbitrary 8 bit data.
3107 See also: C<guestfs_lsetxattr>, L<attr(5)>.");
3109 ("lsetxattr", (RErr, [String "xattr";
3110 String "val"; Int "vallen"; (* will be BufferIn *)
3111 Pathname "path"]), 144, [Optional "linuxxattrs"],
3113 "set extended attribute of a file or directory",
3115 This is the same as C<guestfs_setxattr>, but if C<path>
3116 is a symbolic link, then it sets an extended attribute
3117 of the link itself.");
3119 ("removexattr", (RErr, [String "xattr"; Pathname "path"]), 145, [Optional "linuxxattrs"],
3121 "remove extended attribute of a file or directory",
3123 This call removes the extended attribute named C<xattr>
3124 of the file C<path>.
3126 See also: C<guestfs_lremovexattr>, L<attr(5)>.");
3128 ("lremovexattr", (RErr, [String "xattr"; Pathname "path"]), 146, [Optional "linuxxattrs"],
3130 "remove extended attribute of a file or directory",
3132 This is the same as C<guestfs_removexattr>, but if C<path>
3133 is a symbolic link, then it removes an extended attribute
3134 of the link itself.");
3136 ("mountpoints", (RHashtable "mps", []), 147, [],
3140 This call is similar to C<guestfs_mounts>. That call returns
3141 a list of devices. This one returns a hash table (map) of
3142 device name to directory where the device is mounted.");
3144 ("mkmountpoint", (RErr, [String "exemptpath"]), 148, [],
3145 (* This is a special case: while you would expect a parameter
3146 * of type "Pathname", that doesn't work, because it implies
3147 * NEED_ROOT in the generated calling code in stubs.c, and
3148 * this function cannot use NEED_ROOT.
3151 "create a mountpoint",
3153 C<guestfs_mkmountpoint> and C<guestfs_rmmountpoint> are
3154 specialized calls that can be used to create extra mountpoints
3155 before mounting the first filesystem.
3157 These calls are I<only> necessary in some very limited circumstances,
3158 mainly the case where you want to mount a mix of unrelated and/or
3159 read-only filesystems together.
3161 For example, live CDs often contain a \"Russian doll\" nest of
3162 filesystems, an ISO outer layer, with a squashfs image inside, with
3163 an ext2/3 image inside that. You can unpack this as follows
3166 add-ro Fedora-11-i686-Live.iso
3169 mkmountpoint /squash
3172 mount-loop /cd/LiveOS/squashfs.img /squash
3173 mount-loop /squash/LiveOS/ext3fs.img /ext3
3175 The inner filesystem is now unpacked under the /ext3 mountpoint.");
3177 ("rmmountpoint", (RErr, [String "exemptpath"]), 149, [],
3179 "remove a mountpoint",
3181 This calls removes a mountpoint that was previously created
3182 with C<guestfs_mkmountpoint>. See C<guestfs_mkmountpoint>
3183 for full details.");
3185 ("read_file", (RBufferOut "content", [Pathname "path"]), 150, [ProtocolLimitWarning],
3186 [InitISOFS, Always, TestOutputBuffer (
3187 [["read_file"; "/known-4"]], "abc\ndef\nghi")],
3190 This calls returns the contents of the file C<path> as a
3193 Unlike C<guestfs_cat>, this function can correctly
3194 handle files that contain embedded ASCII NUL characters.
3195 However unlike C<guestfs_download>, this function is limited
3196 in the total size of file that can be handled.");
3198 ("grep", (RStringList "lines", [String "regex"; Pathname "path"]), 151, [ProtocolLimitWarning],
3199 [InitISOFS, Always, TestOutputList (
3200 [["grep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"]);
3201 InitISOFS, Always, TestOutputList (
3202 [["grep"; "nomatch"; "/test-grep.txt"]], [])],
3203 "return lines matching a pattern",
3205 This calls the external C<grep> program and returns the
3208 ("egrep", (RStringList "lines", [String "regex"; Pathname "path"]), 152, [ProtocolLimitWarning],
3209 [InitISOFS, Always, TestOutputList (
3210 [["egrep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"])],
3211 "return lines matching a pattern",
3213 This calls the external C<egrep> program and returns the
3216 ("fgrep", (RStringList "lines", [String "pattern"; Pathname "path"]), 153, [ProtocolLimitWarning],
3217 [InitISOFS, Always, TestOutputList (
3218 [["fgrep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"])],
3219 "return lines matching a pattern",
3221 This calls the external C<fgrep> program and returns the
3224 ("grepi", (RStringList "lines", [String "regex"; Pathname "path"]), 154, [ProtocolLimitWarning],
3225 [InitISOFS, Always, TestOutputList (
3226 [["grepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3227 "return lines matching a pattern",
3229 This calls the external C<grep -i> program and returns the
3232 ("egrepi", (RStringList "lines", [String "regex"; Pathname "path"]), 155, [ProtocolLimitWarning],
3233 [InitISOFS, Always, TestOutputList (
3234 [["egrepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3235 "return lines matching a pattern",
3237 This calls the external C<egrep -i> program and returns the
3240 ("fgrepi", (RStringList "lines", [String "pattern"; Pathname "path"]), 156, [ProtocolLimitWarning],
3241 [InitISOFS, Always, TestOutputList (
3242 [["fgrepi"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"; "ABC"])],
3243 "return lines matching a pattern",
3245 This calls the external C<fgrep -i> program and returns the
3248 ("zgrep", (RStringList "lines", [String "regex"; Pathname "path"]), 157, [ProtocolLimitWarning],
3249 [InitISOFS, Always, TestOutputList (
3250 [["zgrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3251 "return lines matching a pattern",
3253 This calls the external C<zgrep> program and returns the
3256 ("zegrep", (RStringList "lines", [String "regex"; Pathname "path"]), 158, [ProtocolLimitWarning],
3257 [InitISOFS, Always, TestOutputList (
3258 [["zegrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3259 "return lines matching a pattern",
3261 This calls the external C<zegrep> program and returns the
3264 ("zfgrep", (RStringList "lines", [String "pattern"; Pathname "path"]), 159, [ProtocolLimitWarning],
3265 [InitISOFS, Always, TestOutputList (
3266 [["zfgrep"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"])],
3267 "return lines matching a pattern",
3269 This calls the external C<zfgrep> program and returns the
3272 ("zgrepi", (RStringList "lines", [String "regex"; Pathname "path"]), 160, [ProtocolLimitWarning],
3273 [InitISOFS, Always, TestOutputList (
3274 [["zgrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3275 "return lines matching a pattern",
3277 This calls the external C<zgrep -i> program and returns the
3280 ("zegrepi", (RStringList "lines", [String "regex"; Pathname "path"]), 161, [ProtocolLimitWarning],
3281 [InitISOFS, Always, TestOutputList (
3282 [["zegrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3283 "return lines matching a pattern",
3285 This calls the external C<zegrep -i> program and returns the
3288 ("zfgrepi", (RStringList "lines", [String "pattern"; Pathname "path"]), 162, [ProtocolLimitWarning],
3289 [InitISOFS, Always, TestOutputList (
3290 [["zfgrepi"; "abc"; "/test-grep.txt.gz"]], ["abc"; "abc123"; "ABC"])],
3291 "return lines matching a pattern",
3293 This calls the external C<zfgrep -i> program and returns the
3296 ("realpath", (RString "rpath", [Pathname "path"]), 163, [Optional "realpath"],
3297 [InitISOFS, Always, TestOutput (
3298 [["realpath"; "/../directory"]], "/directory")],
3299 "canonicalized absolute pathname",
3301 Return the canonicalized absolute pathname of C<path>. The
3302 returned path has no C<.>, C<..> or symbolic link path elements.");
3304 ("ln", (RErr, [String "target"; Pathname "linkname"]), 164, [],
3305 [InitBasicFS, Always, TestOutputStruct (
3308 ["stat"; "/b"]], [CompareWithInt ("nlink", 2)])],
3309 "create a hard link",
3311 This command creates a hard link using the C<ln> command.");
3313 ("ln_f", (RErr, [String "target"; Pathname "linkname"]), 165, [],
3314 [InitBasicFS, Always, TestOutputStruct (
3317 ["ln_f"; "/a"; "/b"];
3318 ["stat"; "/b"]], [CompareWithInt ("nlink", 2)])],
3319 "create a hard link",
3321 This command creates a hard link using the C<ln -f> command.
3322 The C<-f> option removes the link (C<linkname>) if it exists already.");
3324 ("ln_s", (RErr, [String "target"; Pathname "linkname"]), 166, [],
3325 [InitBasicFS, Always, TestOutputStruct (
3327 ["ln_s"; "a"; "/b"];
3328 ["lstat"; "/b"]], [CompareWithInt ("mode", 0o120777)])],
3329 "create a symbolic link",
3331 This command creates a symbolic link using the C<ln -s> command.");
3333 ("ln_sf", (RErr, [String "target"; Pathname "linkname"]), 167, [],
3334 [InitBasicFS, Always, TestOutput (
3335 [["mkdir_p"; "/a/b"];
3336 ["touch"; "/a/b/c"];
3337 ["ln_sf"; "../d"; "/a/b/c"];
3338 ["readlink"; "/a/b/c"]], "../d")],
3339 "create a symbolic link",
3341 This command creates a symbolic link using the C<ln -sf> command,
3342 The C<-f> option removes the link (C<linkname>) if it exists already.");
3344 ("readlink", (RString "link", [Pathname "path"]), 168, [],
3345 [] (* XXX tested above *),
3346 "read the target of a symbolic link",
3348 This command reads the target of a symbolic link.");
3350 ("fallocate", (RErr, [Pathname "path"; Int "len"]), 169, [],
3351 [InitBasicFS, Always, TestOutputStruct (
3352 [["fallocate"; "/a"; "1000000"];
3353 ["stat"; "/a"]], [CompareWithInt ("size", 1_000_000)])],
3354 "preallocate a file in the guest filesystem",
3356 This command preallocates a file (containing zero bytes) named
3357 C<path> of size C<len> bytes. If the file exists already, it
3360 Do not confuse this with the guestfish-specific
3361 C<alloc> command which allocates a file in the host and
3362 attaches it as a device.");
3364 ("swapon_device", (RErr, [Device "device"]), 170, [],
3365 [InitPartition, Always, TestRun (
3366 [["mkswap"; "/dev/sda1"];
3367 ["swapon_device"; "/dev/sda1"];
3368 ["swapoff_device"; "/dev/sda1"]])],
3369 "enable swap on device",
3371 This command enables the libguestfs appliance to use the
3372 swap device or partition named C<device>. The increased
3373 memory is made available for all commands, for example
3374 those run using C<guestfs_command> or C<guestfs_sh>.
3376 Note that you should not swap to existing guest swap
3377 partitions unless you know what you are doing. They may
3378 contain hibernation information, or other information that
3379 the guest doesn't want you to trash. You also risk leaking
3380 information about the host to the guest this way. Instead,
3381 attach a new host device to the guest and swap on that.");
3383 ("swapoff_device", (RErr, [Device "device"]), 171, [],
3384 [], (* XXX tested by swapon_device *)
3385 "disable swap on device",
3387 This command disables the libguestfs appliance swap
3388 device or partition named C<device>.
3389 See C<guestfs_swapon_device>.");
3391 ("swapon_file", (RErr, [Pathname "file"]), 172, [],
3392 [InitBasicFS, Always, TestRun (
3393 [["fallocate"; "/swap"; "8388608"];
3394 ["mkswap_file"; "/swap"];
3395 ["swapon_file"; "/swap"];
3396 ["swapoff_file"; "/swap"]])],
3397 "enable swap on file",
3399 This command enables swap to a file.
3400 See C<guestfs_swapon_device> for other notes.");
3402 ("swapoff_file", (RErr, [Pathname "file"]), 173, [],
3403 [], (* XXX tested by swapon_file *)
3404 "disable swap on file",
3406 This command disables the libguestfs appliance swap on file.");
3408 ("swapon_label", (RErr, [String "label"]), 174, [],
3409 [InitEmpty, Always, TestRun (
3410 [["part_disk"; "/dev/sdb"; "mbr"];
3411 ["mkswap_L"; "swapit"; "/dev/sdb1"];
3412 ["swapon_label"; "swapit"];
3413 ["swapoff_label"; "swapit"];
3414 ["zero"; "/dev/sdb"];
3415 ["blockdev_rereadpt"; "/dev/sdb"]])],
3416 "enable swap on labeled swap partition",
3418 This command enables swap to a labeled swap partition.
3419 See C<guestfs_swapon_device> for other notes.");
3421 ("swapoff_label", (RErr, [String "label"]), 175, [],
3422 [], (* XXX tested by swapon_label *)
3423 "disable swap on labeled swap partition",
3425 This command disables the libguestfs appliance swap on
3426 labeled swap partition.");
3428 ("swapon_uuid", (RErr, [String "uuid"]), 176, [Optional "linuxfsuuid"],
3429 (let uuid = uuidgen () in
3430 [InitEmpty, Always, TestRun (
3431 [["mkswap_U"; uuid; "/dev/sdb"];
3432 ["swapon_uuid"; uuid];
3433 ["swapoff_uuid"; uuid]])]),
3434 "enable swap on swap partition by UUID",
3436 This command enables swap to a swap partition with the given UUID.
3437 See C<guestfs_swapon_device> for other notes.");
3439 ("swapoff_uuid", (RErr, [String "uuid"]), 177, [Optional "linuxfsuuid"],
3440 [], (* XXX tested by swapon_uuid *)
3441 "disable swap on swap partition by UUID",
3443 This command disables the libguestfs appliance swap partition
3444 with the given UUID.");
3446 ("mkswap_file", (RErr, [Pathname "path"]), 178, [],
3447 [InitBasicFS, Always, TestRun (
3448 [["fallocate"; "/swap"; "8388608"];
3449 ["mkswap_file"; "/swap"]])],
3450 "create a swap file",
3454 This command just writes a swap file signature to an existing
3455 file. To create the file itself, use something like C<guestfs_fallocate>.");
3457 ("inotify_init", (RErr, [Int "maxevents"]), 179, [Optional "inotify"],
3458 [InitISOFS, Always, TestRun (
3459 [["inotify_init"; "0"]])],
3460 "create an inotify handle",
3462 This command creates a new inotify handle.
3463 The inotify subsystem can be used to notify events which happen to
3464 objects in the guest filesystem.
3466 C<maxevents> is the maximum number of events which will be
3467 queued up between calls to C<guestfs_inotify_read> or
3468 C<guestfs_inotify_files>.
3469 If this is passed as C<0>, then the kernel (or previously set)
3470 default is used. For Linux 2.6.29 the default was 16384 events.
3471 Beyond this limit, the kernel throws away events, but records
3472 the fact that it threw them away by setting a flag
3473 C<IN_Q_OVERFLOW> in the returned structure list (see
3474 C<guestfs_inotify_read>).
3476 Before any events are generated, you have to add some
3477 watches to the internal watch list. See:
3478 C<guestfs_inotify_add_watch>,
3479 C<guestfs_inotify_rm_watch> and
3480 C<guestfs_inotify_watch_all>.
3482 Queued up events should be read periodically by calling
3483 C<guestfs_inotify_read>
3484 (or C<guestfs_inotify_files> which is just a helpful
3485 wrapper around C<guestfs_inotify_read>). If you don't
3486 read the events out often enough then you risk the internal
3489 The handle should be closed after use by calling
3490 C<guestfs_inotify_close>. This also removes any
3491 watches automatically.
3493 See also L<inotify(7)> for an overview of the inotify interface
3494 as exposed by the Linux kernel, which is roughly what we expose
3495 via libguestfs. Note that there is one global inotify handle
3496 per libguestfs instance.");
3498 ("inotify_add_watch", (RInt64 "wd", [Pathname "path"; Int "mask"]), 180, [Optional "inotify"],
3499 [InitBasicFS, Always, TestOutputList (
3500 [["inotify_init"; "0"];
3501 ["inotify_add_watch"; "/"; "1073741823"];
3504 ["inotify_files"]], ["a"; "b"])],
3505 "add an inotify watch",
3507 Watch C<path> for the events listed in C<mask>.
3509 Note that if C<path> is a directory then events within that
3510 directory are watched, but this does I<not> happen recursively
3511 (in subdirectories).
3513 Note for non-C or non-Linux callers: the inotify events are
3514 defined by the Linux kernel ABI and are listed in
3515 C</usr/include/sys/inotify.h>.");
3517 ("inotify_rm_watch", (RErr, [Int(*XXX64*) "wd"]), 181, [Optional "inotify"],
3519 "remove an inotify watch",
3521 Remove a previously defined inotify watch.
3522 See C<guestfs_inotify_add_watch>.");
3524 ("inotify_read", (RStructList ("events", "inotify_event"), []), 182, [Optional "inotify"],
3526 "return list of inotify events",
3528 Return the complete queue of events that have happened
3529 since the previous read call.
3531 If no events have happened, this returns an empty list.
3533 I<Note>: In order to make sure that all events have been
3534 read, you must call this function repeatedly until it
3535 returns an empty list. The reason is that the call will
3536 read events up to the maximum appliance-to-host message
3537 size and leave remaining events in the queue.");
3539 ("inotify_files", (RStringList "paths", []), 183, [Optional "inotify"],
3541 "return list of watched files that had events",
3543 This function is a helpful wrapper around C<guestfs_inotify_read>
3544 which just returns a list of pathnames of objects that were
3545 touched. The returned pathnames are sorted and deduplicated.");
3547 ("inotify_close", (RErr, []), 184, [Optional "inotify"],
3549 "close the inotify handle",
3551 This closes the inotify handle which was previously
3552 opened by inotify_init. It removes all watches, throws
3553 away any pending events, and deallocates all resources.");
3555 ("setcon", (RErr, [String "context"]), 185, [Optional "selinux"],
3557 "set SELinux security context",
3559 This sets the SELinux security context of the daemon
3560 to the string C<context>.
3562 See the documentation about SELINUX in L<guestfs(3)>.");
3564 ("getcon", (RString "context", []), 186, [Optional "selinux"],
3566 "get SELinux security context",
3568 This gets the SELinux security context of the daemon.
3570 See the documentation about SELINUX in L<guestfs(3)>,
3571 and C<guestfs_setcon>");
3573 ("mkfs_b", (RErr, [String "fstype"; Int "blocksize"; Device "device"]), 187, [],
3574 [InitEmpty, Always, TestOutput (
3575 [["part_disk"; "/dev/sda"; "mbr"];
3576 ["mkfs_b"; "ext2"; "4096"; "/dev/sda1"];
3577 ["mount_options"; ""; "/dev/sda1"; "/"];
3578 ["write_file"; "/new"; "new file contents"; "0"];
3579 ["cat"; "/new"]], "new file contents")],
3580 "make a filesystem with block size",
3582 This call is similar to C<guestfs_mkfs>, but it allows you to
3583 control the block size of the resulting filesystem. Supported
3584 block sizes depend on the filesystem type, but typically they
3585 are C<1024>, C<2048> or C<4096> only.");
3587 ("mke2journal", (RErr, [Int "blocksize"; Device "device"]), 188, [],
3588 [InitEmpty, Always, TestOutput (
3589 [["sfdiskM"; "/dev/sda"; ",100 ,"];
3590 ["mke2journal"; "4096"; "/dev/sda1"];
3591 ["mke2fs_J"; "ext2"; "4096"; "/dev/sda2"; "/dev/sda1"];
3592 ["mount_options"; ""; "/dev/sda2"; "/"];
3593 ["write_file"; "/new"; "new file contents"; "0"];
3594 ["cat"; "/new"]], "new file contents")],
3595 "make ext2/3/4 external journal",
3597 This creates an ext2 external journal on C<device>. It is equivalent
3600 mke2fs -O journal_dev -b blocksize device");
3602 ("mke2journal_L", (RErr, [Int "blocksize"; String "label"; Device "device"]), 189, [],
3603 [InitEmpty, Always, TestOutput (
3604 [["sfdiskM"; "/dev/sda"; ",100 ,"];
3605 ["mke2journal_L"; "4096"; "JOURNAL"; "/dev/sda1"];
3606 ["mke2fs_JL"; "ext2"; "4096"; "/dev/sda2"; "JOURNAL"];
3607 ["mount_options"; ""; "/dev/sda2"; "/"];
3608 ["write_file"; "/new"; "new file contents"; "0"];
3609 ["cat"; "/new"]], "new file contents")],
3610 "make ext2/3/4 external journal with label",
3612 This creates an ext2 external journal on C<device> with label C<label>.");
3614 ("mke2journal_U", (RErr, [Int "blocksize"; String "uuid"; Device "device"]), 190, [Optional "linuxfsuuid"],
3615 (let uuid = uuidgen () in
3616 [InitEmpty, Always, TestOutput (
3617 [["sfdiskM"; "/dev/sda"; ",100 ,"];
3618 ["mke2journal_U"; "4096"; uuid; "/dev/sda1"];
3619 ["mke2fs_JU"; "ext2"; "4096"; "/dev/sda2"; uuid];
3620 ["mount_options"; ""; "/dev/sda2"; "/"];
3621 ["write_file"; "/new"; "new file contents"; "0"];
3622 ["cat"; "/new"]], "new file contents")]),
3623 "make ext2/3/4 external journal with UUID",
3625 This creates an ext2 external journal on C<device> with UUID C<uuid>.");
3627 ("mke2fs_J", (RErr, [String "fstype"; Int "blocksize"; Device "device"; Device "journal"]), 191, [],
3629 "make ext2/3/4 filesystem with external journal",
3631 This creates an ext2/3/4 filesystem on C<device> with
3632 an external journal on C<journal>. It is equivalent
3635 mke2fs -t fstype -b blocksize -J device=<journal> <device>
3637 See also C<guestfs_mke2journal>.");
3639 ("mke2fs_JL", (RErr, [String "fstype"; Int "blocksize"; Device "device"; String "label"]), 192, [],
3641 "make ext2/3/4 filesystem with external journal",
3643 This creates an ext2/3/4 filesystem on C<device> with
3644 an external journal on the journal labeled C<label>.
3646 See also C<guestfs_mke2journal_L>.");
3648 ("mke2fs_JU", (RErr, [String "fstype"; Int "blocksize"; Device "device"; String "uuid"]), 193, [Optional "linuxfsuuid"],
3650 "make ext2/3/4 filesystem with external journal",
3652 This creates an ext2/3/4 filesystem on C<device> with
3653 an external journal on the journal with UUID C<uuid>.
3655 See also C<guestfs_mke2journal_U>.");
3657 ("modprobe", (RErr, [String "modulename"]), 194, [Optional "linuxmodules"],
3658 [InitNone, Always, TestRun [["modprobe"; "fat"]]],
3659 "load a kernel module",
3661 This loads a kernel module in the appliance.
3663 The kernel module must have been whitelisted when libguestfs
3664 was built (see C<appliance/kmod.whitelist.in> in the source).");
3666 ("echo_daemon", (RString "output", [StringList "words"]), 195, [],
3667 [InitNone, Always, TestOutput (
3668 [["echo_daemon"; "This is a test"]], "This is a test"
3670 "echo arguments back to the client",
3672 This command concatenate the list of C<words> passed with single spaces between
3673 them and returns the resulting string.
3675 You can use this command to test the connection through to the daemon.
3677 See also C<guestfs_ping_daemon>.");
3679 ("find0", (RErr, [Pathname "directory"; FileOut "files"]), 196, [],
3680 [], (* There is a regression test for this. *)
3681 "find all files and directories, returning NUL-separated list",
3683 This command lists out all files and directories, recursively,
3684 starting at C<directory>, placing the resulting list in the
3685 external file called C<files>.
3687 This command works the same way as C<guestfs_find> with the
3688 following exceptions:
3694 The resulting list is written to an external file.
3698 Items (filenames) in the result are separated
3699 by C<\\0> characters. See L<find(1)> option I<-print0>.
3703 This command is not limited in the number of names that it
3708 The result list is not sorted.
3712 ("case_sensitive_path", (RString "rpath", [Pathname "path"]), 197, [],
3713 [InitISOFS, Always, TestOutput (
3714 [["case_sensitive_path"; "/DIRECTORY"]], "/directory");
3715 InitISOFS, Always, TestOutput (
3716 [["case_sensitive_path"; "/DIRECTORY/"]], "/directory");
3717 InitISOFS, Always, TestOutput (
3718 [["case_sensitive_path"; "/Known-1"]], "/known-1");
3719 InitISOFS, Always, TestLastFail (
3720 [["case_sensitive_path"; "/Known-1/"]]);
3721 InitBasicFS, Always, TestOutput (
3723 ["mkdir"; "/a/bbb"];
3724 ["touch"; "/a/bbb/c"];
3725 ["case_sensitive_path"; "/A/bbB/C"]], "/a/bbb/c");
3726 InitBasicFS, Always, TestOutput (
3728 ["mkdir"; "/a/bbb"];
3729 ["touch"; "/a/bbb/c"];
3730 ["case_sensitive_path"; "/A////bbB/C"]], "/a/bbb/c");
3731 InitBasicFS, Always, TestLastFail (
3733 ["mkdir"; "/a/bbb"];
3734 ["touch"; "/a/bbb/c"];
3735 ["case_sensitive_path"; "/A/bbb/../bbb/C"]])],
3736 "return true path on case-insensitive filesystem",
3738 This can be used to resolve case insensitive paths on
3739 a filesystem which is case sensitive. The use case is
3740 to resolve paths which you have read from Windows configuration
3741 files or the Windows Registry, to the true path.
3743 The command handles a peculiarity of the Linux ntfs-3g
3744 filesystem driver (and probably others), which is that although
3745 the underlying filesystem is case-insensitive, the driver
3746 exports the filesystem to Linux as case-sensitive.
3748 One consequence of this is that special directories such
3749 as C<c:\\windows> may appear as C</WINDOWS> or C</windows>
3750 (or other things) depending on the precise details of how
3751 they were created. In Windows itself this would not be
3754 Bug or feature? You decide:
3755 L<http://www.tuxera.com/community/ntfs-3g-faq/#posixfilenames1>
3757 This function resolves the true case of each element in the
3758 path and returns the case-sensitive path.
3760 Thus C<guestfs_case_sensitive_path> (\"/Windows/System32\")
3761 might return C<\"/WINDOWS/system32\"> (the exact return value
3762 would depend on details of how the directories were originally
3763 created under Windows).
3766 This function does not handle drive names, backslashes etc.
3768 See also C<guestfs_realpath>.");
3770 ("vfs_type", (RString "fstype", [Device "device"]), 198, [],
3771 [InitBasicFS, Always, TestOutput (
3772 [["vfs_type"; "/dev/sda1"]], "ext2")],
3773 "get the Linux VFS type corresponding to a mounted device",
3775 This command gets the block device type corresponding to
3776 a mounted device called C<device>.
3778 Usually the result is the name of the Linux VFS module that
3779 is used to mount this device (probably determined automatically
3780 if you used the C<guestfs_mount> call).");
3782 ("truncate", (RErr, [Pathname "path"]), 199, [],
3783 [InitBasicFS, Always, TestOutputStruct (
3784 [["write_file"; "/test"; "some stuff so size is not zero"; "0"];
3785 ["truncate"; "/test"];
3786 ["stat"; "/test"]], [CompareWithInt ("size", 0)])],
3787 "truncate a file to zero size",
3789 This command truncates C<path> to a zero-length file. The
3790 file must exist already.");
3792 ("truncate_size", (RErr, [Pathname "path"; Int64 "size"]), 200, [],
3793 [InitBasicFS, Always, TestOutputStruct (
3794 [["touch"; "/test"];
3795 ["truncate_size"; "/test"; "1000"];
3796 ["stat"; "/test"]], [CompareWithInt ("size", 1000)])],
3797 "truncate a file to a particular size",
3799 This command truncates C<path> to size C<size> bytes. The file
3800 must exist already. If the file is smaller than C<size> then
3801 the file is extended to the required size with null bytes.");
3803 ("utimens", (RErr, [Pathname "path"; Int64 "atsecs"; Int64 "atnsecs"; Int64 "mtsecs"; Int64 "mtnsecs"]), 201, [],
3804 [InitBasicFS, Always, TestOutputStruct (
3805 [["touch"; "/test"];
3806 ["utimens"; "/test"; "12345"; "67890"; "9876"; "5432"];
3807 ["stat"; "/test"]], [CompareWithInt ("mtime", 9876)])],
3808 "set timestamp of a file with nanosecond precision",
3810 This command sets the timestamps of a file with nanosecond
3813 C<atsecs, atnsecs> are the last access time (atime) in secs and
3814 nanoseconds from the epoch.
3816 C<mtsecs, mtnsecs> are the last modification time (mtime) in
3817 secs and nanoseconds from the epoch.
3819 If the C<*nsecs> field contains the special value C<-1> then
3820 the corresponding timestamp is set to the current time. (The
3821 C<*secs> field is ignored in this case).
3823 If the C<*nsecs> field contains the special value C<-2> then
3824 the corresponding timestamp is left unchanged. (The
3825 C<*secs> field is ignored in this case).");
3827 ("mkdir_mode", (RErr, [Pathname "path"; Int "mode"]), 202, [],
3828 [InitBasicFS, Always, TestOutputStruct (
3829 [["mkdir_mode"; "/test"; "0o111"];
3830 ["stat"; "/test"]], [CompareWithInt ("mode", 0o40111)])],
3831 "create a directory with a particular mode",
3833 This command creates a directory, setting the initial permissions
3834 of the directory to C<mode>. See also C<guestfs_mkdir>.");
3836 ("lchown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 203, [],
3838 "change file owner and group",
3840 Change the file owner to C<owner> and group to C<group>.
3841 This is like C<guestfs_chown> but if C<path> is a symlink then
3842 the link itself is changed, not the target.
3844 Only numeric uid and gid are supported. If you want to use
3845 names, you will need to locate and parse the password file
3846 yourself (Augeas support makes this relatively easy).");
3848 ("lstatlist", (RStructList ("statbufs", "stat"), [Pathname "path"; StringList "names"]), 204, [],
3850 "lstat on multiple files",
3852 This call allows you to perform the C<guestfs_lstat> operation
3853 on multiple files, where all files are in the directory C<path>.
3854 C<names> is the list of files from this directory.
3856 On return you get a list of stat structs, with a one-to-one
3857 correspondence to the C<names> list. If any name did not exist
3858 or could not be lstat'd, then the C<ino> field of that structure
3861 This call is intended for programs that want to efficiently
3862 list a directory contents without making many round-trips.
3863 See also C<guestfs_lxattrlist> for a similarly efficient call
3864 for getting extended attributes. Very long directory listings
3865 might cause the protocol message size to be exceeded, causing
3866 this call to fail. The caller must split up such requests
3867 into smaller groups of names.");
3869 ("lxattrlist", (RStructList ("xattrs", "xattr"), [Pathname "path"; StringList "names"]), 205, [Optional "linuxxattrs"],
3871 "lgetxattr on multiple files",
3873 This call allows you to get the extended attributes
3874 of multiple files, where all files are in the directory C<path>.
3875 C<names> is the list of files from this directory.
3877 On return you get a flat list of xattr structs which must be
3878 interpreted sequentially. The first xattr struct always has a zero-length
3879 C<attrname>. C<attrval> in this struct is zero-length
3880 to indicate there was an error doing C<lgetxattr> for this
3881 file, I<or> is a C string which is a decimal number
3882 (the number of following attributes for this file, which could
3883 be C<\"0\">). Then after the first xattr struct are the
3884 zero or more attributes for the first named file.
3885 This repeats for the second and subsequent files.
3887 This call is intended for programs that want to efficiently
3888 list a directory contents without making many round-trips.
3889 See also C<guestfs_lstatlist> for a similarly efficient call
3890 for getting standard stats. Very long directory listings
3891 might cause the protocol message size to be exceeded, causing
3892 this call to fail. The caller must split up such requests
3893 into smaller groups of names.");
3895 ("readlinklist", (RStringList "links", [Pathname "path"; StringList "names"]), 206, [],
3897 "readlink on multiple files",
3899 This call allows you to do a C<readlink> operation
3900 on multiple files, where all files are in the directory C<path>.
3901 C<names> is the list of files from this directory.
3903 On return you get a list of strings, with a one-to-one
3904 correspondence to the C<names> list. Each string is the
3905 value of the symbol link.
3907 If the C<readlink(2)> operation fails on any name, then
3908 the corresponding result string is the empty string C<\"\">.
3909 However the whole operation is completed even if there
3910 were C<readlink(2)> errors, and so you can call this
3911 function with names where you don't know if they are
3912 symbolic links already (albeit slightly less efficient).
3914 This call is intended for programs that want to efficiently
3915 list a directory contents without making many round-trips.
3916 Very long directory listings might cause the protocol
3917 message size to be exceeded, causing
3918 this call to fail. The caller must split up such requests
3919 into smaller groups of names.");
3921 ("pread", (RBufferOut "content", [Pathname "path"; Int "count"; Int64 "offset"]), 207, [ProtocolLimitWarning],
3922 [InitISOFS, Always, TestOutputBuffer (
3923 [["pread"; "/known-4"; "1"; "3"]], "\n");
3924 InitISOFS, Always, TestOutputBuffer (
3925 [["pread"; "/empty"; "0"; "100"]], "")],
3926 "read part of a file",
3928 This command lets you read part of a file. It reads C<count>
3929 bytes of the file, starting at C<offset>, from file C<path>.
3931 This may read fewer bytes than requested. For further details
3932 see the L<pread(2)> system call.");
3934 ("part_init", (RErr, [Device "device"; String "parttype"]), 208, [],
3935 [InitEmpty, Always, TestRun (
3936 [["part_init"; "/dev/sda"; "gpt"]])],
3937 "create an empty partition table",
3939 This creates an empty partition table on C<device> of one of the
3940 partition types listed below. Usually C<parttype> should be
3941 either C<msdos> or C<gpt> (for large disks).
3943 Initially there are no partitions. Following this, you should
3944 call C<guestfs_part_add> for each partition required.
3946 Possible values for C<parttype> are:
3950 =item B<efi> | B<gpt>
3952 Intel EFI / GPT partition table.
3954 This is recommended for >= 2 TB partitions that will be accessed
3955 from Linux and Intel-based Mac OS X. It also has limited backwards
3956 compatibility with the C<mbr> format.
3958 =item B<mbr> | B<msdos>
3960 The standard PC \"Master Boot Record\" (MBR) format used
3961 by MS-DOS and Windows. This partition type will B<only> work
3962 for device sizes up to 2 TB. For large disks we recommend
3967 Other partition table types that may work but are not
3976 =item B<amiga> | B<rdb>
3978 Amiga \"Rigid Disk Block\" format.
3986 DASD, used on IBM mainframes.
3994 Old Mac partition format. Modern Macs use C<gpt>.
3998 NEC PC-98 format, common in Japan apparently.
4006 ("part_add", (RErr, [Device "device"; String "prlogex"; Int64 "startsect"; Int64 "endsect"]), 209, [],
4007 [InitEmpty, Always, TestRun (
4008 [["part_init"; "/dev/sda"; "mbr"];
4009 ["part_add"; "/dev/sda"; "primary"; "1"; "-1"]]);
4010 InitEmpty, Always, TestRun (
4011 [["part_init"; "/dev/sda"; "gpt"];
4012 ["part_add"; "/dev/sda"; "primary"; "34"; "127"];
4013 ["part_add"; "/dev/sda"; "primary"; "128"; "-34"]]);
4014 InitEmpty, Always, TestRun (
4015 [["part_init"; "/dev/sda"; "mbr"];
4016 ["part_add"; "/dev/sda"; "primary"; "32"; "127"];
4017 ["part_add"; "/dev/sda"; "primary"; "128"; "255"];
4018 ["part_add"; "/dev/sda"; "primary"; "256"; "511"];
4019 ["part_add"; "/dev/sda"; "primary"; "512"; "-1"]])],
4020 "add a partition to the device",
4022 This command adds a partition to C<device>. If there is no partition
4023 table on the device, call C<guestfs_part_init> first.
4025 The C<prlogex> parameter is the type of partition. Normally you
4026 should pass C<p> or C<primary> here, but MBR partition tables also
4027 support C<l> (or C<logical>) and C<e> (or C<extended>) partition
4030 C<startsect> and C<endsect> are the start and end of the partition
4031 in I<sectors>. C<endsect> may be negative, which means it counts
4032 backwards from the end of the disk (C<-1> is the last sector).
4034 Creating a partition which covers the whole disk is not so easy.
4035 Use C<guestfs_part_disk> to do that.");
4037 ("part_disk", (RErr, [Device "device"; String "parttype"]), 210, [DangerWillRobinson],
4038 [InitEmpty, Always, TestRun (
4039 [["part_disk"; "/dev/sda"; "mbr"]]);
4040 InitEmpty, Always, TestRun (
4041 [["part_disk"; "/dev/sda"; "gpt"]])],
4042 "partition whole disk with a single primary partition",
4044 This command is simply a combination of C<guestfs_part_init>
4045 followed by C<guestfs_part_add> to create a single primary partition
4046 covering the whole disk.
4048 C<parttype> is the partition table type, usually C<mbr> or C<gpt>,
4049 but other possible values are described in C<guestfs_part_init>.");
4051 ("part_set_bootable", (RErr, [Device "device"; Int "partnum"; Bool "bootable"]), 211, [],
4052 [InitEmpty, Always, TestRun (
4053 [["part_disk"; "/dev/sda"; "mbr"];
4054 ["part_set_bootable"; "/dev/sda"; "1"; "true"]])],
4055 "make a partition bootable",
4057 This sets the bootable flag on partition numbered C<partnum> on
4058 device C<device>. Note that partitions are numbered from 1.
4060 The bootable flag is used by some PC BIOSes to determine which
4061 partition to boot from. It is by no means universally recognized,
4062 and in any case if your operating system installed a boot
4063 sector on the device itself, then that takes precedence.");
4065 ("part_set_name", (RErr, [Device "device"; Int "partnum"; String "name"]), 212, [],
4066 [InitEmpty, Always, TestRun (
4067 [["part_disk"; "/dev/sda"; "gpt"];
4068 ["part_set_name"; "/dev/sda"; "1"; "thepartname"]])],
4069 "set partition name",
4071 This sets the partition name on partition numbered C<partnum> on
4072 device C<device>. Note that partitions are numbered from 1.
4074 The partition name can only be set on certain types of partition
4075 table. This works on C<gpt> but not on C<mbr> partitions.");
4077 ("part_list", (RStructList ("partitions", "partition"), [Device "device"]), 213, [],
4078 [], (* XXX Add a regression test for this. *)
4079 "list partitions on a device",
4081 This command parses the partition table on C<device> and
4082 returns the list of partitions found.
4084 The fields in the returned structure are:
4090 Partition number, counting from 1.
4094 Start of the partition I<in bytes>. To get sectors you have to
4095 divide by the device's sector size, see C<guestfs_blockdev_getss>.
4099 End of the partition in bytes.
4103 Size of the partition in bytes.
4107 ("part_get_parttype", (RString "parttype", [Device "device"]), 214, [],
4108 [InitEmpty, Always, TestOutput (
4109 [["part_disk"; "/dev/sda"; "gpt"];
4110 ["part_get_parttype"; "/dev/sda"]], "gpt")],
4111 "get the partition table type",
4113 This command examines the partition table on C<device> and
4114 returns the partition table type (format) being used.
4116 Common return values include: C<msdos> (a DOS/Windows style MBR
4117 partition table), C<gpt> (a GPT/EFI-style partition table). Other
4118 values are possible, although unusual. See C<guestfs_part_init>
4121 ("fill", (RErr, [Int "c"; Int "len"; Pathname "path"]), 215, [],
4122 [InitBasicFS, Always, TestOutputBuffer (
4123 [["fill"; "0x63"; "10"; "/test"];
4124 ["read_file"; "/test"]], "cccccccccc")],
4125 "fill a file with octets",
4127 This command creates a new file called C<path>. The initial
4128 content of the file is C<len> octets of C<c>, where C<c>
4129 must be a number in the range C<[0..255]>.
4131 To fill a file with zero bytes (sparsely), it is
4132 much more efficient to use C<guestfs_truncate_size>.");
4134 ("available", (RErr, [StringList "groups"]), 216, [],
4135 [InitNone, Always, TestRun [["available"; ""]]],
4136 "test availability of some parts of the API",
4138 This command is used to check the availability of some
4139 groups of functionality in the appliance, which not all builds of
4140 the libguestfs appliance will be able to provide.
4142 The libguestfs groups, and the functions that those
4143 groups correspond to, are listed in L<guestfs(3)/AVAILABILITY>.
4145 The argument C<groups> is a list of group names, eg:
4146 C<[\"inotify\", \"augeas\"]> would check for the availability of
4147 the Linux inotify functions and Augeas (configuration file
4150 The command returns no error if I<all> requested groups are available.
4152 It fails with an error if one or more of the requested
4153 groups is unavailable in the appliance.
4155 If an unknown group name is included in the
4156 list of groups then an error is always returned.
4164 You must call C<guestfs_launch> before calling this function.
4166 The reason is because we don't know what groups are
4167 supported by the appliance/daemon until it is running and can
4172 If a group of functions is available, this does not necessarily
4173 mean that they will work. You still have to check for errors
4174 when calling individual API functions even if they are
4179 It is usually the job of distro packagers to build
4180 complete functionality into the libguestfs appliance.
4181 Upstream libguestfs, if built from source with all
4182 requirements satisfied, will support everything.
4186 This call was added in version C<1.0.80>. In previous
4187 versions of libguestfs all you could do would be to speculatively
4188 execute a command to find out if the daemon implemented it.
4189 See also C<guestfs_version>.
4193 ("dd", (RErr, [Dev_or_Path "src"; Dev_or_Path "dest"]), 217, [],
4194 [InitBasicFS, Always, TestOutputBuffer (
4195 [["write_file"; "/src"; "hello, world"; "0"];
4196 ["dd"; "/src"; "/dest"];
4197 ["read_file"; "/dest"]], "hello, world")],
4198 "copy from source to destination using dd",
4200 This command copies from one source device or file C<src>
4201 to another destination device or file C<dest>. Normally you
4202 would use this to copy to or from a device or partition, for
4203 example to duplicate a filesystem.
4205 If the destination is a device, it must be as large or larger
4206 than the source file or device, otherwise the copy will fail.
4207 This command cannot do partial copies.");
4209 ("filesize", (RInt64 "size", [Pathname "file"]), 218, [],
4210 [InitBasicFS, Always, TestOutputInt (
4211 [["write_file"; "/file"; "hello, world"; "0"];
4212 ["filesize"; "/file"]], 12)],
4213 "return the size of the file in bytes",
4215 This command returns the size of C<file> in bytes.
4217 To get other stats about a file, use C<guestfs_stat>, C<guestfs_lstat>,
4218 C<guestfs_is_dir>, C<guestfs_is_file> etc.
4219 To get the size of block devices, use C<guestfs_blockdev_getsize64>.");
4221 ("lvrename", (RErr, [String "logvol"; String "newlogvol"]), 219, [],
4222 [InitBasicFSonLVM, Always, TestOutputList (
4223 [["lvrename"; "/dev/VG/LV"; "/dev/VG/LV2"];
4224 ["lvs"]], ["/dev/VG/LV2"])],
4225 "rename an LVM logical volume",
4227 Rename a logical volume C<logvol> with the new name C<newlogvol>.");
4229 ("vgrename", (RErr, [String "volgroup"; String "newvolgroup"]), 220, [],
4230 [InitBasicFSonLVM, Always, TestOutputList (
4232 ["vg_activate"; "false"; "VG"];
4233 ["vgrename"; "VG"; "VG2"];
4234 ["vg_activate"; "true"; "VG2"];
4235 ["mount_options"; ""; "/dev/VG2/LV"; "/"];
4236 ["vgs"]], ["VG2"])],
4237 "rename an LVM volume group",
4239 Rename a volume group C<volgroup> with the new name C<newvolgroup>.");
4241 ("initrd_cat", (RBufferOut "content", [Pathname "initrdpath"; String "filename"]), 221, [],
4242 [InitISOFS, Always, TestOutputBuffer (
4243 [["initrd_cat"; "/initrd"; "known-4"]], "abc\ndef\nghi")],
4244 "list the contents of a single file in an initrd",
4246 This command unpacks the file C<filename> from the initrd file
4247 called C<initrdpath>. The filename must be given I<without> the
4248 initial C</> character.
4250 For example, in guestfish you could use the following command
4251 to examine the boot script (usually called C</init>)
4252 contained in a Linux initrd or initramfs image:
4254 initrd-cat /boot/initrd-<version>.img init
4256 See also C<guestfs_initrd_list>.");
4260 let all_functions = non_daemon_functions @ daemon_functions
4262 (* In some places we want the functions to be displayed sorted
4263 * alphabetically, so this is useful:
4265 let all_functions_sorted =
4266 List.sort (fun (n1,_,_,_,_,_,_) (n2,_,_,_,_,_,_) ->
4267 compare n1 n2) all_functions
4269 (* Field types for structures. *)
4271 | FChar (* C 'char' (really, a 7 bit byte). *)
4272 | FString (* nul-terminated ASCII string, NOT NULL. *)
4273 | FBuffer (* opaque buffer of bytes, (char *, int) pair *)
4278 | FBytes (* Any int measure that counts bytes. *)
4279 | FUUID (* 32 bytes long, NOT nul-terminated. *)
4280 | FOptPercent (* [0..100], or -1 meaning "not present". *)
4282 (* Because we generate extra parsing code for LVM command line tools,
4283 * we have to pull out the LVM columns separately here.
4293 "pv_attr", FString (* XXX *);
4294 "pv_pe_count", FInt64;
4295 "pv_pe_alloc_count", FInt64;
4298 "pv_mda_count", FInt64;
4299 "pv_mda_free", FBytes;
4300 (* Not in Fedora 10:
4301 "pv_mda_size", FBytes;
4308 "vg_attr", FString (* XXX *);
4311 "vg_sysid", FString;
4312 "vg_extent_size", FBytes;
4313 "vg_extent_count", FInt64;
4314 "vg_free_count", FInt64;
4319 "snap_count", FInt64;
4322 "vg_mda_count", FInt64;
4323 "vg_mda_free", FBytes;
4324 (* Not in Fedora 10:
4325 "vg_mda_size", FBytes;
4331 "lv_attr", FString (* XXX *);
4334 "lv_kernel_major", FInt64;
4335 "lv_kernel_minor", FInt64;
4337 "seg_count", FInt64;
4339 "snap_percent", FOptPercent;
4340 "copy_percent", FOptPercent;
4343 "mirror_log", FString;
4347 (* Names and fields in all structures (in RStruct and RStructList)
4351 (* The old RIntBool return type, only ever used for aug_defnode. Do
4352 * not use this struct in any new code.
4355 "i", FInt32; (* for historical compatibility *)
4356 "b", FInt32; (* for historical compatibility *)
4359 (* LVM PVs, VGs, LVs. *)
4360 "lvm_pv", lvm_pv_cols;
4361 "lvm_vg", lvm_vg_cols;
4362 "lvm_lv", lvm_lv_cols;
4364 (* Column names and types from stat structures.
4365 * NB. Can't use things like 'st_atime' because glibc header files
4366 * define some of these as macros. Ugh.
4397 (* Column names in dirent structure. *)
4400 (* 'b' 'c' 'd' 'f' (FIFO) 'l' 'r' (regular file) 's' 'u' '?' *)
4405 (* Version numbers. *)
4413 (* Extended attribute. *)
4415 "attrname", FString;
4419 (* Inotify events. *)
4423 "in_cookie", FUInt32;
4427 (* Partition table entry. *)
4430 "part_start", FBytes;
4432 "part_size", FBytes;
4434 ] (* end of structs *)
4436 (* Ugh, Java has to be different ..
4437 * These names are also used by the Haskell bindings.
4439 let java_structs = [
4440 "int_bool", "IntBool";
4445 "statvfs", "StatVFS";
4447 "version", "Version";
4449 "inotify_event", "INotifyEvent";
4450 "partition", "Partition";
4453 (* What structs are actually returned. *)
4454 type rstructs_used_t = RStructOnly | RStructListOnly | RStructAndList
4456 (* Returns a list of RStruct/RStructList structs that are returned
4457 * by any function. Each element of returned list is a pair:
4459 * (structname, RStructOnly)
4460 * == there exists function which returns RStruct (_, structname)
4461 * (structname, RStructListOnly)
4462 * == there exists function which returns RStructList (_, structname)
4463 * (structname, RStructAndList)
4464 * == there are functions returning both RStruct (_, structname)
4465 * and RStructList (_, structname)
4467 let rstructs_used_by functions =
4468 (* ||| is a "logical OR" for rstructs_used_t *)
4472 | _, RStructAndList -> RStructAndList
4473 | RStructOnly, RStructListOnly
4474 | RStructListOnly, RStructOnly -> RStructAndList
4475 | RStructOnly, RStructOnly -> RStructOnly
4476 | RStructListOnly, RStructListOnly -> RStructListOnly
4479 let h = Hashtbl.create 13 in
4481 (* if elem->oldv exists, update entry using ||| operator,
4482 * else just add elem->newv to the hash
4484 let update elem newv =
4485 try let oldv = Hashtbl.find h elem in
4486 Hashtbl.replace h elem (newv ||| oldv)
4487 with Not_found -> Hashtbl.add h elem newv
4491 fun (_, style, _, _, _, _, _) ->
4492 match fst style with
4493 | RStruct (_, structname) -> update structname RStructOnly
4494 | RStructList (_, structname) -> update structname RStructListOnly
4498 (* return key->values as a list of (key,value) *)
4499 Hashtbl.fold (fun key value xs -> (key, value) :: xs) h []
4501 (* Used for testing language bindings. *)
4503 | CallString of string
4504 | CallOptString of string option
4505 | CallStringList of string list
4507 | CallInt64 of int64
4510 (* Used to memoize the result of pod2text. *)
4511 let pod2text_memo_filename = "src/.pod2text.data"
4512 let pod2text_memo : ((int * string * string), string list) Hashtbl.t =
4514 let chan = open_in pod2text_memo_filename in
4515 let v = input_value chan in
4519 _ -> Hashtbl.create 13
4520 let pod2text_memo_updated () =
4521 let chan = open_out pod2text_memo_filename in
4522 output_value chan pod2text_memo;
4525 (* Useful functions.
4526 * Note we don't want to use any external OCaml libraries which
4527 * makes this a bit harder than it should be.
4529 module StringMap = Map.Make (String)
4531 let failwithf fs = ksprintf failwith fs
4533 let unique = let i = ref 0 in fun () -> incr i; !i
4535 let replace_char s c1 c2 =
4536 let s2 = String.copy s in
4537 let r = ref false in
4538 for i = 0 to String.length s2 - 1 do
4539 if String.unsafe_get s2 i = c1 then (
4540 String.unsafe_set s2 i c2;
4544 if not !r then s else s2
4548 (* || c = '\f' *) || c = '\n' || c = '\r' || c = '\t' (* || c = '\v' *)
4550 let triml ?(test = isspace) str =
4552 let n = ref (String.length str) in
4553 while !n > 0 && test str.[!i]; do
4558 else String.sub str !i !n
4560 let trimr ?(test = isspace) str =
4561 let n = ref (String.length str) in
4562 while !n > 0 && test str.[!n-1]; do
4565 if !n = String.length str then str
4566 else String.sub str 0 !n
4568 let trim ?(test = isspace) str =
4569 trimr ~test (triml ~test str)
4571 let rec find s sub =
4572 let len = String.length s in
4573 let sublen = String.length sub in
4575 if i <= len-sublen then (
4577 if j < sublen then (
4578 if s.[i+j] = sub.[j] then loop2 (j+1)
4584 if r = -1 then loop (i+1) else r
4590 let rec replace_str s s1 s2 =
4591 let len = String.length s in
4592 let sublen = String.length s1 in
4593 let i = find s s1 in
4596 let s' = String.sub s 0 i in
4597 let s'' = String.sub s (i+sublen) (len-i-sublen) in
4598 s' ^ s2 ^ replace_str s'' s1 s2
4601 let rec string_split sep str =
4602 let len = String.length str in
4603 let seplen = String.length sep in
4604 let i = find str sep in
4605 if i = -1 then [str]
4607 let s' = String.sub str 0 i in
4608 let s'' = String.sub str (i+seplen) (len-i-seplen) in
4609 s' :: string_split sep s''
4612 let files_equal n1 n2 =
4613 let cmd = sprintf "cmp -s %s %s" (Filename.quote n1) (Filename.quote n2) in
4614 match Sys.command cmd with
4617 | i -> failwithf "%s: failed with error code %d" cmd i
4619 let rec filter_map f = function
4623 | Some y -> y :: filter_map f xs
4624 | None -> filter_map f xs
4626 let rec find_map f = function
4627 | [] -> raise Not_found
4631 | None -> find_map f xs
4634 let rec loop i = function
4636 | x :: xs -> f i x; loop (i+1) xs
4641 let rec loop i = function
4643 | x :: xs -> let r = f i x in r :: loop (i+1) xs
4647 let count_chars c str =
4648 let count = ref 0 in
4649 for i = 0 to String.length str - 1 do
4650 if c = String.unsafe_get str i then incr count
4654 let name_of_argt = function
4655 | Pathname n | Device n | Dev_or_Path n | String n | OptString n
4656 | StringList n | DeviceList n | Bool n | Int n | Int64 n
4657 | FileIn n | FileOut n -> n
4659 let java_name_of_struct typ =
4660 try List.assoc typ java_structs
4663 "java_name_of_struct: no java_structs entry corresponding to %s" typ
4665 let cols_of_struct typ =
4666 try List.assoc typ structs
4668 failwithf "cols_of_struct: unknown struct %s" typ
4670 let seq_of_test = function
4671 | TestRun s | TestOutput (s, _) | TestOutputList (s, _)
4672 | TestOutputListOfDevices (s, _)
4673 | TestOutputInt (s, _) | TestOutputIntOp (s, _, _)
4674 | TestOutputTrue s | TestOutputFalse s
4675 | TestOutputLength (s, _) | TestOutputBuffer (s, _)
4676 | TestOutputStruct (s, _)
4677 | TestLastFail s -> s
4679 (* Handling for function flags. *)
4680 let protocol_limit_warning =
4681 "Because of the message protocol, there is a transfer limit
4682 of somewhere between 2MB and 4MB. To transfer large files you should use
4685 let danger_will_robinson =
4686 "B<This command is dangerous. Without careful use you
4687 can easily destroy all your data>."
4689 let deprecation_notice flags =
4692 find_map (function DeprecatedBy str -> Some str | _ -> None) flags in
4694 sprintf "This function is deprecated.
4695 In new code, use the C<%s> call instead.
4697 Deprecated functions will not be removed from the API, but the
4698 fact that they are deprecated indicates that there are problems
4699 with correct use of these functions." alt in
4704 (* Create list of optional groups. *)
4706 let h = Hashtbl.create 13 in
4708 fun (name, _, _, flags, _, _, _) ->
4712 let names = try Hashtbl.find h group with Not_found -> [] in
4713 Hashtbl.replace h group (name :: names)
4717 let groups = Hashtbl.fold (fun k _ ks -> k :: ks) h [] in
4720 fun group -> group, List.sort compare (Hashtbl.find h group)
4722 List.sort (fun x y -> compare (fst x) (fst y)) groups
4724 (* Check function names etc. for consistency. *)
4725 let check_functions () =
4726 let contains_uppercase str =
4727 let len = String.length str in
4729 if i >= len then false
4732 if c >= 'A' && c <= 'Z' then true
4739 (* Check function names. *)
4741 fun (name, _, _, _, _, _, _) ->
4742 if String.length name >= 7 && String.sub name 0 7 = "guestfs" then
4743 failwithf "function name %s does not need 'guestfs' prefix" name;
4745 failwithf "function name is empty";
4746 if name.[0] < 'a' || name.[0] > 'z' then
4747 failwithf "function name %s must start with lowercase a-z" name;
4748 if String.contains name '-' then
4749 failwithf "function name %s should not contain '-', use '_' instead."
4753 (* Check function parameter/return names. *)
4755 fun (name, style, _, _, _, _, _) ->
4756 let check_arg_ret_name n =
4757 if contains_uppercase n then
4758 failwithf "%s param/ret %s should not contain uppercase chars"
4760 if String.contains n '-' || String.contains n '_' then
4761 failwithf "%s param/ret %s should not contain '-' or '_'"
4764 failwithf "%s has a param/ret called 'value', which causes conflicts in the OCaml bindings, use something like 'val' or a more descriptive name" name;
4765 if n = "int" || n = "char" || n = "short" || n = "long" then
4766 failwithf "%s has a param/ret which conflicts with a C type (eg. 'int', 'char' etc.)" name;
4767 if n = "i" || n = "n" then
4768 failwithf "%s has a param/ret called 'i' or 'n', which will cause some conflicts in the generated code" name;
4769 if n = "argv" || n = "args" then
4770 failwithf "%s has a param/ret called 'argv' or 'args', which will cause some conflicts in the generated code" name;
4772 (* List Haskell, OCaml and C keywords here.
4773 * http://www.haskell.org/haskellwiki/Keywords
4774 * http://caml.inria.fr/pub/docs/manual-ocaml/lex.html#operator-char
4775 * http://en.wikipedia.org/wiki/C_syntax#Reserved_keywords
4776 * Formatted via: cat c haskell ocaml|sort -u|grep -vE '_|^val$' \
4777 * |perl -pe 's/(.+)/"$1";/'|fmt -70
4778 * Omitting _-containing words, since they're handled above.
4779 * Omitting the OCaml reserved word, "val", is ok,
4780 * and saves us from renaming several parameters.
4783 "and"; "as"; "asr"; "assert"; "auto"; "begin"; "break"; "case";
4784 "char"; "class"; "const"; "constraint"; "continue"; "data";
4785 "default"; "deriving"; "do"; "done"; "double"; "downto"; "else";
4786 "end"; "enum"; "exception"; "extern"; "external"; "false"; "float";
4787 "for"; "forall"; "foreign"; "fun"; "function"; "functor"; "goto";
4788 "hiding"; "if"; "import"; "in"; "include"; "infix"; "infixl";
4789 "infixr"; "inherit"; "initializer"; "inline"; "instance"; "int";
4791 "land"; "lazy"; "let"; "long"; "lor"; "lsl"; "lsr"; "lxor";
4792 "match"; "mdo"; "method"; "mod"; "module"; "mutable"; "new";
4793 "newtype"; "object"; "of"; "open"; "or"; "private"; "qualified";
4794 "rec"; "register"; "restrict"; "return"; "short"; "sig"; "signed";
4795 "sizeof"; "static"; "struct"; "switch"; "then"; "to"; "true"; "try";
4796 "type"; "typedef"; "union"; "unsigned"; "virtual"; "void";
4797 "volatile"; "when"; "where"; "while";
4799 if List.mem n reserved then
4800 failwithf "%s has param/ret using reserved word %s" name n;
4803 (match fst style with
4805 | RInt n | RInt64 n | RBool n
4806 | RConstString n | RConstOptString n | RString n
4807 | RStringList n | RStruct (n, _) | RStructList (n, _)
4808 | RHashtable n | RBufferOut n ->
4809 check_arg_ret_name n
4811 List.iter (fun arg -> check_arg_ret_name (name_of_argt arg)) (snd style)
4814 (* Check short descriptions. *)
4816 fun (name, _, _, _, _, shortdesc, _) ->
4817 if shortdesc.[0] <> Char.lowercase shortdesc.[0] then
4818 failwithf "short description of %s should begin with lowercase." name;
4819 let c = shortdesc.[String.length shortdesc-1] in
4820 if c = '\n' || c = '.' then
4821 failwithf "short description of %s should not end with . or \\n." name
4824 (* Check long dscriptions. *)
4826 fun (name, _, _, _, _, _, longdesc) ->
4827 if longdesc.[String.length longdesc-1] = '\n' then
4828 failwithf "long description of %s should not end with \\n." name
4831 (* Check proc_nrs. *)
4833 fun (name, _, proc_nr, _, _, _, _) ->
4834 if proc_nr <= 0 then
4835 failwithf "daemon function %s should have proc_nr > 0" name
4839 fun (name, _, proc_nr, _, _, _, _) ->
4840 if proc_nr <> -1 then
4841 failwithf "non-daemon function %s should have proc_nr -1" name
4842 ) non_daemon_functions;
4845 List.map (fun (name, _, proc_nr, _, _, _, _) -> name, proc_nr)
4848 List.sort (fun (_,nr1) (_,nr2) -> compare nr1 nr2) proc_nrs in
4849 let rec loop = function
4852 | (name1,nr1) :: ((name2,nr2) :: _ as rest) when nr1 < nr2 ->
4854 | (name1,nr1) :: (name2,nr2) :: _ ->
4855 failwithf "%s and %s have conflicting procedure numbers (%d, %d)"
4863 (* Ignore functions that have no tests. We generate a
4864 * warning when the user does 'make check' instead.
4866 | name, _, _, _, [], _, _ -> ()
4867 | name, _, _, _, tests, _, _ ->
4871 match seq_of_test test with
4873 failwithf "%s has a test containing an empty sequence" name
4874 | cmds -> List.map List.hd cmds
4876 let funcs = List.flatten funcs in
4878 let tested = List.mem name funcs in
4881 failwithf "function %s has tests but does not test itself" name
4884 (* 'pr' prints to the current output file. *)
4885 let chan = ref Pervasives.stdout
4890 let i = count_chars '\n' str in
4891 lines := !lines + i;
4892 output_string !chan str
4895 let copyright_years =
4896 let this_year = 1900 + (localtime (time ())).tm_year in
4897 if this_year > 2009 then sprintf "2009-%04d" this_year else "2009"
4899 (* Generate a header block in a number of standard styles. *)
4900 type comment_style =
4901 CStyle | CPlusPlusStyle | HashStyle | OCamlStyle | HaskellStyle
4902 type license = GPLv2plus | LGPLv2plus
4904 let generate_header ?(extra_inputs = []) comment license =
4905 let inputs = "src/generator.ml" :: extra_inputs in
4906 let c = match comment with
4907 | CStyle -> pr "/* "; " *"
4908 | CPlusPlusStyle -> pr "// "; "//"
4909 | HashStyle -> pr "# "; "#"
4910 | OCamlStyle -> pr "(* "; " *"
4911 | HaskellStyle -> pr "{- "; " " in
4912 pr "libguestfs generated file\n";
4913 pr "%s WARNING: THIS FILE IS GENERATED FROM:\n" c;
4914 List.iter (pr "%s %s\n" c) inputs;
4915 pr "%s ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST.\n" c;
4917 pr "%s Copyright (C) %s Red Hat Inc.\n" c copyright_years;
4921 pr "%s This program is free software; you can redistribute it and/or modify\n" c;
4922 pr "%s it under the terms of the GNU General Public License as published by\n" c;
4923 pr "%s the Free Software Foundation; either version 2 of the License, or\n" c;
4924 pr "%s (at your option) any later version.\n" c;
4926 pr "%s This program is distributed in the hope that it will be useful,\n" c;
4927 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
4928 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" c;
4929 pr "%s GNU General Public License for more details.\n" c;
4931 pr "%s You should have received a copy of the GNU General Public License along\n" c;
4932 pr "%s with this program; if not, write to the Free Software Foundation, Inc.,\n" c;
4933 pr "%s 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n" c;
4936 pr "%s This library is free software; you can redistribute it and/or\n" c;
4937 pr "%s modify it under the terms of the GNU Lesser General Public\n" c;
4938 pr "%s License as published by the Free Software Foundation; either\n" c;
4939 pr "%s version 2 of the License, or (at your option) any later version.\n" c;
4941 pr "%s This library is distributed in the hope that it will be useful,\n" c;
4942 pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
4943 pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" c;
4944 pr "%s Lesser General Public License for more details.\n" c;
4946 pr "%s You should have received a copy of the GNU Lesser General Public\n" c;
4947 pr "%s License along with this library; if not, write to the Free Software\n" c;
4948 pr "%s Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" c;
4951 | CStyle -> pr " */\n"
4954 | OCamlStyle -> pr " *)\n"
4955 | HaskellStyle -> pr "-}\n"
4959 (* Start of main code generation functions below this line. *)
4961 (* Generate the pod documentation for the C API. *)
4962 let rec generate_actions_pod () =
4964 fun (shortname, style, _, flags, _, _, longdesc) ->
4965 if not (List.mem NotInDocs flags) then (
4966 let name = "guestfs_" ^ shortname in
4967 pr "=head2 %s\n\n" name;
4969 generate_prototype ~extern:false ~handle:"handle" name style;
4971 pr "%s\n\n" longdesc;
4972 (match fst style with
4974 pr "This function returns 0 on success or -1 on error.\n\n"
4976 pr "On error this function returns -1.\n\n"
4978 pr "On error this function returns -1.\n\n"
4980 pr "This function returns a C truth value on success or -1 on error.\n\n"
4982 pr "This function returns a string, or NULL on error.
4983 The string is owned by the guest handle and must I<not> be freed.\n\n"
4984 | RConstOptString _ ->
4985 pr "This function returns a string which may be NULL.
4986 There is way to return an error from this function.
4987 The string is owned by the guest handle and must I<not> be freed.\n\n"
4989 pr "This function returns a string, or NULL on error.
4990 I<The caller must free the returned string after use>.\n\n"
4992 pr "This function returns a NULL-terminated array of strings
4993 (like L<environ(3)>), or NULL if there was an error.
4994 I<The caller must free the strings and the array after use>.\n\n"
4995 | RStruct (_, typ) ->
4996 pr "This function returns a C<struct guestfs_%s *>,
4997 or NULL if there was an error.
4998 I<The caller must call C<guestfs_free_%s> after use>.\n\n" typ typ
4999 | RStructList (_, typ) ->
5000 pr "This function returns a C<struct guestfs_%s_list *>
5001 (see E<lt>guestfs-structs.hE<gt>),
5002 or NULL if there was an error.
5003 I<The caller must call C<guestfs_free_%s_list> after use>.\n\n" typ typ
5005 pr "This function returns a NULL-terminated array of
5006 strings, or NULL if there was an error.
5007 The array of strings will always have length C<2n+1>, where
5008 C<n> keys and values alternate, followed by the trailing NULL entry.
5009 I<The caller must free the strings and the array after use>.\n\n"
5011 pr "This function returns a buffer, or NULL on error.
5012 The size of the returned buffer is written to C<*size_r>.
5013 I<The caller must free the returned buffer after use>.\n\n"
5015 if List.mem ProtocolLimitWarning flags then
5016 pr "%s\n\n" protocol_limit_warning;
5017 if List.mem DangerWillRobinson flags then
5018 pr "%s\n\n" danger_will_robinson;
5019 match deprecation_notice flags with
5021 | Some txt -> pr "%s\n\n" txt
5023 ) all_functions_sorted
5025 and generate_structs_pod () =
5026 (* Structs documentation. *)
5029 pr "=head2 guestfs_%s\n" typ;
5031 pr " struct guestfs_%s {\n" typ;
5034 | name, FChar -> pr " char %s;\n" name
5035 | name, FUInt32 -> pr " uint32_t %s;\n" name
5036 | name, FInt32 -> pr " int32_t %s;\n" name
5037 | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
5038 | name, FInt64 -> pr " int64_t %s;\n" name
5039 | name, FString -> pr " char *%s;\n" name
5041 pr " /* The next two fields describe a byte array. */\n";
5042 pr " uint32_t %s_len;\n" name;
5043 pr " char *%s;\n" name
5045 pr " /* The next field is NOT nul-terminated, be careful when printing it: */\n";
5046 pr " char %s[32];\n" name
5047 | name, FOptPercent ->
5048 pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
5049 pr " float %s;\n" name
5053 pr " struct guestfs_%s_list {\n" typ;
5054 pr " uint32_t len; /* Number of elements in list. */\n";
5055 pr " struct guestfs_%s *val; /* Elements. */\n" typ;
5058 pr " void guestfs_free_%s (struct guestfs_free_%s *);\n" typ typ;
5059 pr " void guestfs_free_%s_list (struct guestfs_free_%s_list *);\n"
5064 and generate_availability_pod () =
5065 (* Availability documentation. *)
5069 fun (group, functions) ->
5070 pr "=item B<%s>\n" group;
5072 pr "The following functions:\n";
5073 List.iter (pr "L</guestfs_%s>\n") functions;
5079 (* Generate the protocol (XDR) file, 'guestfs_protocol.x' and
5080 * indirectly 'guestfs_protocol.h' and 'guestfs_protocol.c'.
5082 * We have to use an underscore instead of a dash because otherwise
5083 * rpcgen generates incorrect code.
5085 * This header is NOT exported to clients, but see also generate_structs_h.
5087 and generate_xdr () =
5088 generate_header CStyle LGPLv2plus;
5090 (* This has to be defined to get around a limitation in Sun's rpcgen. *)
5091 pr "typedef string str<>;\n";
5094 (* Internal structures. *)
5098 pr "struct guestfs_int_%s {\n" typ;
5100 | name, FChar -> pr " char %s;\n" name
5101 | name, FString -> pr " string %s<>;\n" name
5102 | name, FBuffer -> pr " opaque %s<>;\n" name
5103 | name, FUUID -> pr " opaque %s[32];\n" name
5104 | name, (FInt32|FUInt32) -> pr " int %s;\n" name
5105 | name, (FInt64|FUInt64|FBytes) -> pr " hyper %s;\n" name
5106 | name, FOptPercent -> pr " float %s;\n" name
5110 pr "typedef struct guestfs_int_%s guestfs_int_%s_list<>;\n" typ typ;
5115 fun (shortname, style, _, _, _, _, _) ->
5116 let name = "guestfs_" ^ shortname in
5118 (match snd style with
5121 pr "struct %s_args {\n" name;
5124 | Pathname n | Device n | Dev_or_Path n | String n ->
5125 pr " string %s<>;\n" n
5126 | OptString n -> pr " str *%s;\n" n
5127 | StringList n | DeviceList n -> pr " str %s<>;\n" n
5128 | Bool n -> pr " bool %s;\n" n
5129 | Int n -> pr " int %s;\n" n
5130 | Int64 n -> pr " hyper %s;\n" n
5131 | FileIn _ | FileOut _ -> ()
5135 (match fst style with
5138 pr "struct %s_ret {\n" name;
5142 pr "struct %s_ret {\n" name;
5143 pr " hyper %s;\n" n;
5146 pr "struct %s_ret {\n" name;
5149 | RConstString _ | RConstOptString _ ->
5150 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
5152 pr "struct %s_ret {\n" name;
5153 pr " string %s<>;\n" n;
5156 pr "struct %s_ret {\n" name;
5157 pr " str %s<>;\n" n;
5159 | RStruct (n, typ) ->
5160 pr "struct %s_ret {\n" name;
5161 pr " guestfs_int_%s %s;\n" typ n;
5163 | RStructList (n, typ) ->
5164 pr "struct %s_ret {\n" name;
5165 pr " guestfs_int_%s_list %s;\n" typ n;
5168 pr "struct %s_ret {\n" name;
5169 pr " str %s<>;\n" n;
5172 pr "struct %s_ret {\n" name;
5173 pr " opaque %s<>;\n" n;
5178 (* Table of procedure numbers. *)
5179 pr "enum guestfs_procedure {\n";
5181 fun (shortname, _, proc_nr, _, _, _, _) ->
5182 pr " GUESTFS_PROC_%s = %d,\n" (String.uppercase shortname) proc_nr
5184 pr " GUESTFS_PROC_NR_PROCS\n";
5188 (* Having to choose a maximum message size is annoying for several
5189 * reasons (it limits what we can do in the API), but it (a) makes
5190 * the protocol a lot simpler, and (b) provides a bound on the size
5191 * of the daemon which operates in limited memory space. For large
5192 * file transfers you should use FTP.
5194 pr "const GUESTFS_MESSAGE_MAX = %d;\n" (4 * 1024 * 1024);
5197 (* Message header, etc. *)
5199 /* The communication protocol is now documented in the guestfs(3)
5203 const GUESTFS_PROGRAM = 0x2000F5F5;
5204 const GUESTFS_PROTOCOL_VERSION = 1;
5206 /* These constants must be larger than any possible message length. */
5207 const GUESTFS_LAUNCH_FLAG = 0xf5f55ff5;
5208 const GUESTFS_CANCEL_FLAG = 0xffffeeee;
5210 enum guestfs_message_direction {
5211 GUESTFS_DIRECTION_CALL = 0, /* client -> daemon */
5212 GUESTFS_DIRECTION_REPLY = 1 /* daemon -> client */
5215 enum guestfs_message_status {
5216 GUESTFS_STATUS_OK = 0,
5217 GUESTFS_STATUS_ERROR = 1
5220 const GUESTFS_ERROR_LEN = 256;
5222 struct guestfs_message_error {
5223 string error_message<GUESTFS_ERROR_LEN>;
5226 struct guestfs_message_header {
5227 unsigned prog; /* GUESTFS_PROGRAM */
5228 unsigned vers; /* GUESTFS_PROTOCOL_VERSION */
5229 guestfs_procedure proc; /* GUESTFS_PROC_x */
5230 guestfs_message_direction direction;
5231 unsigned serial; /* message serial number */
5232 guestfs_message_status status;
5235 const GUESTFS_MAX_CHUNK_SIZE = 8192;
5237 struct guestfs_chunk {
5238 int cancel; /* if non-zero, transfer is cancelled */
5239 /* data size is 0 bytes if the transfer has finished successfully */
5240 opaque data<GUESTFS_MAX_CHUNK_SIZE>;
5244 (* Generate the guestfs-structs.h file. *)
5245 and generate_structs_h () =
5246 generate_header CStyle LGPLv2plus;
5248 (* This is a public exported header file containing various
5249 * structures. The structures are carefully written to have
5250 * exactly the same in-memory format as the XDR structures that
5251 * we use on the wire to the daemon. The reason for creating
5252 * copies of these structures here is just so we don't have to
5253 * export the whole of guestfs_protocol.h (which includes much
5254 * unrelated and XDR-dependent stuff that we don't want to be
5255 * public, or required by clients).
5257 * To reiterate, we will pass these structures to and from the
5258 * client with a simple assignment or memcpy, so the format
5259 * must be identical to what rpcgen / the RFC defines.
5262 (* Public structures. *)
5265 pr "struct guestfs_%s {\n" typ;
5268 | name, FChar -> pr " char %s;\n" name
5269 | name, FString -> pr " char *%s;\n" name
5271 pr " uint32_t %s_len;\n" name;
5272 pr " char *%s;\n" name
5273 | name, FUUID -> pr " char %s[32]; /* this is NOT nul-terminated, be careful when printing */\n" name
5274 | name, FUInt32 -> pr " uint32_t %s;\n" name
5275 | name, FInt32 -> pr " int32_t %s;\n" name
5276 | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
5277 | name, FInt64 -> pr " int64_t %s;\n" name
5278 | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
5282 pr "struct guestfs_%s_list {\n" typ;
5283 pr " uint32_t len;\n";
5284 pr " struct guestfs_%s *val;\n" typ;
5287 pr "extern void guestfs_free_%s (struct guestfs_%s *);\n" typ typ;
5288 pr "extern void guestfs_free_%s_list (struct guestfs_%s_list *);\n" typ typ;
5292 (* Generate the guestfs-actions.h file. *)
5293 and generate_actions_h () =
5294 generate_header CStyle LGPLv2plus;
5296 fun (shortname, style, _, _, _, _, _) ->
5297 let name = "guestfs_" ^ shortname in
5298 generate_prototype ~single_line:true ~newline:true ~handle:"handle"
5302 (* Generate the guestfs-internal-actions.h file. *)
5303 and generate_internal_actions_h () =
5304 generate_header CStyle LGPLv2plus;
5306 fun (shortname, style, _, _, _, _, _) ->
5307 let name = "guestfs__" ^ shortname in
5308 generate_prototype ~single_line:true ~newline:true ~handle:"handle"
5310 ) non_daemon_functions
5312 (* Generate the client-side dispatch stubs. *)
5313 and generate_client_actions () =
5314 generate_header CStyle LGPLv2plus;
5320 #include <inttypes.h>
5322 #include \"guestfs.h\"
5323 #include \"guestfs-internal.h\"
5324 #include \"guestfs-internal-actions.h\"
5325 #include \"guestfs_protocol.h\"
5327 #define error guestfs_error
5328 //#define perrorf guestfs_perrorf
5329 #define safe_malloc guestfs_safe_malloc
5330 #define safe_realloc guestfs_safe_realloc
5331 //#define safe_strdup guestfs_safe_strdup
5332 #define safe_memdup guestfs_safe_memdup
5334 /* Check the return message from a call for validity. */
5336 check_reply_header (guestfs_h *g,
5337 const struct guestfs_message_header *hdr,
5338 unsigned int proc_nr, unsigned int serial)
5340 if (hdr->prog != GUESTFS_PROGRAM) {
5341 error (g, \"wrong program (%%d/%%d)\", hdr->prog, GUESTFS_PROGRAM);
5344 if (hdr->vers != GUESTFS_PROTOCOL_VERSION) {
5345 error (g, \"wrong protocol version (%%d/%%d)\",
5346 hdr->vers, GUESTFS_PROTOCOL_VERSION);
5349 if (hdr->direction != GUESTFS_DIRECTION_REPLY) {
5350 error (g, \"unexpected message direction (%%d/%%d)\",
5351 hdr->direction, GUESTFS_DIRECTION_REPLY);
5354 if (hdr->proc != proc_nr) {
5355 error (g, \"unexpected procedure number (%%d/%%d)\", hdr->proc, proc_nr);
5358 if (hdr->serial != serial) {
5359 error (g, \"unexpected serial (%%d/%%d)\", hdr->serial, serial);
5366 /* Check we are in the right state to run a high-level action. */
5368 check_state (guestfs_h *g, const char *caller)
5370 if (!guestfs__is_ready (g)) {
5371 if (guestfs__is_config (g) || guestfs__is_launching (g))
5372 error (g, \"%%s: call launch before using this function\\n(in guestfish, don't forget to use the 'run' command)\",
5375 error (g, \"%%s called from the wrong state, %%d != READY\",
5376 caller, guestfs__get_state (g));
5384 (* Generate code to generate guestfish call traces. *)
5385 let trace_call shortname style =
5386 pr " if (guestfs__get_trace (g)) {\n";
5389 List.exists (function
5390 | StringList _ | DeviceList _ -> true
5391 | _ -> false) (snd style) in
5397 pr " printf (\"%s\");\n" shortname;
5400 | String n (* strings *)
5406 (* guestfish doesn't support string escaping, so neither do we *)
5407 pr " printf (\" \\\"%%s\\\"\", %s);\n" n
5408 | OptString n -> (* string option *)
5409 pr " if (%s) printf (\" \\\"%%s\\\"\", %s);\n" n n;
5410 pr " else printf (\" null\");\n"
5412 | DeviceList n -> (* string list *)
5413 pr " putchar (' ');\n";
5414 pr " putchar ('\"');\n";
5415 pr " for (i = 0; %s[i]; ++i) {\n" n;
5416 pr " if (i > 0) putchar (' ');\n";
5417 pr " fputs (%s[i], stdout);\n" n;
5419 pr " putchar ('\"');\n";
5420 | Bool n -> (* boolean *)
5421 pr " fputs (%s ? \" true\" : \" false\", stdout);\n" n
5422 | Int n -> (* int *)
5423 pr " printf (\" %%d\", %s);\n" n
5425 pr " printf (\" %%\" PRIi64, %s);\n" n
5427 pr " putchar ('\\n');\n";
5432 (* For non-daemon functions, generate a wrapper around each function. *)
5434 fun (shortname, style, _, _, _, _, _) ->
5435 let name = "guestfs_" ^ shortname in
5437 generate_prototype ~extern:false ~semicolon:false ~newline:true
5438 ~handle:"g" name style;
5440 trace_call shortname style;
5441 pr " return guestfs__%s " shortname;
5442 generate_c_call_args ~handle:"g" style;
5446 ) non_daemon_functions;
5448 (* Client-side stubs for each function. *)
5450 fun (shortname, style, _, _, _, _, _) ->
5451 let name = "guestfs_" ^ shortname in
5453 (* Generate the action stub. *)
5454 generate_prototype ~extern:false ~semicolon:false ~newline:true
5455 ~handle:"g" name style;
5458 match fst style with
5459 | RErr | RInt _ | RInt64 _ | RBool _ -> "-1"
5460 | RConstString _ | RConstOptString _ ->
5461 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
5462 | RString _ | RStringList _
5463 | RStruct _ | RStructList _
5464 | RHashtable _ | RBufferOut _ ->
5469 (match snd style with
5471 | _ -> pr " struct %s_args args;\n" name
5474 pr " guestfs_message_header hdr;\n";
5475 pr " guestfs_message_error err;\n";
5477 match fst style with
5479 | RConstString _ | RConstOptString _ ->
5480 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
5482 | RBool _ | RString _ | RStringList _
5483 | RStruct _ | RStructList _
5484 | RHashtable _ | RBufferOut _ ->
5485 pr " struct %s_ret ret;\n" name;
5488 pr " int serial;\n";
5491 trace_call shortname style;
5492 pr " if (check_state (g, \"%s\") == -1) return %s;\n" name error_code;
5493 pr " guestfs___set_busy (g);\n";
5496 (* Send the main header and arguments. *)
5497 (match snd style with
5499 pr " serial = guestfs___send (g, GUESTFS_PROC_%s, NULL, NULL);\n"
5500 (String.uppercase shortname)
5504 | Pathname n | Device n | Dev_or_Path n | String n ->
5505 pr " args.%s = (char *) %s;\n" n n
5507 pr " args.%s = %s ? (char **) &%s : NULL;\n" n n n
5508 | StringList n | DeviceList n ->
5509 pr " args.%s.%s_val = (char **) %s;\n" n n n;
5510 pr " for (args.%s.%s_len = 0; %s[args.%s.%s_len]; args.%s.%s_len++) ;\n" n n n n n n n;
5512 pr " args.%s = %s;\n" n n
5514 pr " args.%s = %s;\n" n n
5516 pr " args.%s = %s;\n" n n
5517 | FileIn _ | FileOut _ -> ()
5519 pr " serial = guestfs___send (g, GUESTFS_PROC_%s,\n"
5520 (String.uppercase shortname);
5521 pr " (xdrproc_t) xdr_%s_args, (char *) &args);\n"
5524 pr " if (serial == -1) {\n";
5525 pr " guestfs___end_busy (g);\n";
5526 pr " return %s;\n" error_code;
5530 (* Send any additional files (FileIn) requested. *)
5531 let need_read_reply_label = ref false in
5535 pr " r = guestfs___send_file (g, %s);\n" n;
5536 pr " if (r == -1) {\n";
5537 pr " guestfs___end_busy (g);\n";
5538 pr " return %s;\n" error_code;
5540 pr " if (r == -2) /* daemon cancelled */\n";
5541 pr " goto read_reply;\n";
5542 need_read_reply_label := true;
5547 (* Wait for the reply from the remote end. *)
5548 if !need_read_reply_label then pr " read_reply:\n";
5549 pr " memset (&hdr, 0, sizeof hdr);\n";
5550 pr " memset (&err, 0, sizeof err);\n";
5551 if has_ret then pr " memset (&ret, 0, sizeof ret);\n";
5553 pr " r = guestfs___recv (g, \"%s\", &hdr, &err,\n " shortname;
5557 pr "(xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret" shortname;
5560 pr " if (r == -1) {\n";
5561 pr " guestfs___end_busy (g);\n";
5562 pr " return %s;\n" error_code;
5566 pr " if (check_reply_header (g, &hdr, GUESTFS_PROC_%s, serial) == -1) {\n"
5567 (String.uppercase shortname);
5568 pr " guestfs___end_busy (g);\n";
5569 pr " return %s;\n" error_code;
5573 pr " if (hdr.status == GUESTFS_STATUS_ERROR) {\n";
5574 pr " error (g, \"%%s: %%s\", \"%s\", err.error_message);\n" shortname;
5575 pr " free (err.error_message);\n";
5576 pr " guestfs___end_busy (g);\n";
5577 pr " return %s;\n" error_code;
5581 (* Expecting to receive further files (FileOut)? *)
5585 pr " if (guestfs___recv_file (g, %s) == -1) {\n" n;
5586 pr " guestfs___end_busy (g);\n";
5587 pr " return %s;\n" error_code;
5593 pr " guestfs___end_busy (g);\n";
5595 (match fst style with
5596 | RErr -> pr " return 0;\n"
5597 | RInt n | RInt64 n | RBool n ->
5598 pr " return ret.%s;\n" n
5599 | RConstString _ | RConstOptString _ ->
5600 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
5602 pr " return ret.%s; /* caller will free */\n" n
5603 | RStringList n | RHashtable n ->
5604 pr " /* caller will free this, but we need to add a NULL entry */\n";
5605 pr " ret.%s.%s_val =\n" n n;
5606 pr " safe_realloc (g, ret.%s.%s_val,\n" n n;
5607 pr " sizeof (char *) * (ret.%s.%s_len + 1));\n"
5609 pr " ret.%s.%s_val[ret.%s.%s_len] = NULL;\n" n n n n;
5610 pr " return ret.%s.%s_val;\n" n n
5612 pr " /* caller will free this */\n";
5613 pr " return safe_memdup (g, &ret.%s, sizeof (ret.%s));\n" n n
5614 | RStructList (n, _) ->
5615 pr " /* caller will free this */\n";
5616 pr " return safe_memdup (g, &ret.%s, sizeof (ret.%s));\n" n n
5618 pr " /* RBufferOut is tricky: If the buffer is zero-length, then\n";
5619 pr " * _val might be NULL here. To make the API saner for\n";
5620 pr " * callers, we turn this case into a unique pointer (using\n";
5621 pr " * malloc(1)).\n";
5623 pr " if (ret.%s.%s_len > 0) {\n" n n;
5624 pr " *size_r = ret.%s.%s_len;\n" n n;
5625 pr " return ret.%s.%s_val; /* caller will free */\n" n n;
5627 pr " free (ret.%s.%s_val);\n" n n;
5628 pr " char *p = safe_malloc (g, 1);\n";
5629 pr " *size_r = ret.%s.%s_len;\n" n n;
5637 (* Functions to free structures. *)
5638 pr "/* Structure-freeing functions. These rely on the fact that the\n";
5639 pr " * structure format is identical to the XDR format. See note in\n";
5640 pr " * generator.ml.\n";
5647 pr "guestfs_free_%s (struct guestfs_%s *x)\n" typ typ;
5649 pr " xdr_free ((xdrproc_t) xdr_guestfs_int_%s, (char *) x);\n" typ;
5655 pr "guestfs_free_%s_list (struct guestfs_%s_list *x)\n" typ typ;
5657 pr " xdr_free ((xdrproc_t) xdr_guestfs_int_%s_list, (char *) x);\n" typ;
5664 (* Generate daemon/actions.h. *)
5665 and generate_daemon_actions_h () =
5666 generate_header CStyle GPLv2plus;
5668 pr "#include \"../src/guestfs_protocol.h\"\n";
5672 fun (name, style, _, _, _, _, _) ->
5674 ~single_line:true ~newline:true ~in_daemon:true ~prefix:"do_"
5678 (* Generate the linker script which controls the visibility of
5679 * symbols in the public ABI and ensures no other symbols get
5680 * exported accidentally.
5682 and generate_linker_script () =
5683 generate_header HashStyle GPLv2plus;
5688 "guestfs_get_error_handler";
5689 "guestfs_get_out_of_memory_handler";
5690 "guestfs_last_error";
5691 "guestfs_set_error_handler";
5692 "guestfs_set_launch_done_callback";
5693 "guestfs_set_log_message_callback";
5694 "guestfs_set_out_of_memory_handler";
5695 "guestfs_set_subprocess_quit_callback";
5697 (* Unofficial parts of the API: the bindings code use these
5698 * functions, so it is useful to export them.
5700 "guestfs_safe_calloc";
5701 "guestfs_safe_malloc";
5704 List.map (fun (name, _, _, _, _, _, _) -> "guestfs_" ^ name)
5708 List.map (fun (typ, _) ->
5709 ["guestfs_free_" ^ typ; "guestfs_free_" ^ typ ^ "_list"])
5712 let globals = List.sort compare (globals @ functions @ structs) in
5716 List.iter (pr " %s;\n") globals;
5723 (* Generate the server-side stubs. *)
5724 and generate_daemon_actions () =
5725 generate_header CStyle GPLv2plus;
5727 pr "#include <config.h>\n";
5729 pr "#include <stdio.h>\n";
5730 pr "#include <stdlib.h>\n";
5731 pr "#include <string.h>\n";
5732 pr "#include <inttypes.h>\n";
5733 pr "#include <rpc/types.h>\n";
5734 pr "#include <rpc/xdr.h>\n";
5736 pr "#include \"daemon.h\"\n";
5737 pr "#include \"c-ctype.h\"\n";
5738 pr "#include \"../src/guestfs_protocol.h\"\n";
5739 pr "#include \"actions.h\"\n";
5743 fun (name, style, _, _, _, _, _) ->
5744 (* Generate server-side stubs. *)
5745 pr "static void %s_stub (XDR *xdr_in)\n" name;
5748 match fst style with
5749 | RErr | RInt _ -> pr " int r;\n"; "-1"
5750 | RInt64 _ -> pr " int64_t r;\n"; "-1"
5751 | RBool _ -> pr " int r;\n"; "-1"
5752 | RConstString _ | RConstOptString _ ->
5753 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
5754 | RString _ -> pr " char *r;\n"; "NULL"
5755 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
5756 | RStruct (_, typ) -> pr " guestfs_int_%s *r;\n" typ; "NULL"
5757 | RStructList (_, typ) -> pr " guestfs_int_%s_list *r;\n" typ; "NULL"
5759 pr " size_t size = 1;\n";
5763 (match snd style with
5766 pr " struct guestfs_%s_args args;\n" name;
5769 | Device n | Dev_or_Path n
5772 | OptString n -> pr " char *%s;\n" n
5773 | StringList n | DeviceList n -> pr " char **%s;\n" n
5774 | Bool n -> pr " int %s;\n" n
5775 | Int n -> pr " int %s;\n" n
5776 | Int64 n -> pr " int64_t %s;\n" n
5777 | FileIn _ | FileOut _ -> ()
5782 (match snd style with
5785 pr " memset (&args, 0, sizeof args);\n";
5787 pr " if (!xdr_guestfs_%s_args (xdr_in, &args)) {\n" name;
5788 pr " reply_with_error (\"%%s: daemon failed to decode procedure arguments\", \"%s\");\n" name;
5792 pr " char *%s = args.%s;\n" n n
5794 let pr_list_handling_code n =
5795 pr " %s = realloc (args.%s.%s_val,\n" n n n;
5796 pr " sizeof (char *) * (args.%s.%s_len+1));\n" n n;
5797 pr " if (%s == NULL) {\n" n;
5798 pr " reply_with_perror (\"realloc\");\n";
5801 pr " %s[args.%s.%s_len] = NULL;\n" n n n;
5802 pr " args.%s.%s_val = %s;\n" n n n;
5808 pr " ABS_PATH (%s, goto done);\n" n;
5811 pr " RESOLVE_DEVICE (%s, goto done);\n" n;
5814 pr " REQUIRE_ROOT_OR_RESOLVE_DEVICE (%s, goto done);\n" n;
5815 | String n -> pr_args n
5816 | OptString n -> pr " %s = args.%s ? *args.%s : NULL;\n" n n n
5818 pr_list_handling_code n;
5820 pr_list_handling_code n;
5821 pr " /* Ensure that each is a device,\n";
5822 pr " * and perform device name translation. */\n";
5823 pr " { int pvi; for (pvi = 0; physvols[pvi] != NULL; ++pvi)\n";
5824 pr " RESOLVE_DEVICE (physvols[pvi], goto done);\n";
5826 | Bool n -> pr " %s = args.%s;\n" n n
5827 | Int n -> pr " %s = args.%s;\n" n n
5828 | Int64 n -> pr " %s = args.%s;\n" n n
5829 | FileIn _ | FileOut _ -> ()
5835 (* this is used at least for do_equal *)
5836 if List.exists (function Pathname _ -> true | _ -> false) (snd style) then (
5837 (* Emit NEED_ROOT just once, even when there are two or
5838 more Pathname args *)
5839 pr " NEED_ROOT (goto done);\n";
5842 (* Don't want to call the impl with any FileIn or FileOut
5843 * parameters, since these go "outside" the RPC protocol.
5846 List.filter (function FileIn _ | FileOut _ -> false | _ -> true)
5848 pr " r = do_%s " name;
5849 generate_c_call_args (fst style, args');
5852 (match fst style with
5853 | RErr | RInt _ | RInt64 _ | RBool _
5854 | RConstString _ | RConstOptString _
5855 | RString _ | RStringList _ | RHashtable _
5856 | RStruct (_, _) | RStructList (_, _) ->
5857 pr " if (r == %s)\n" error_code;
5858 pr " /* do_%s has already called reply_with_error */\n" name;
5862 pr " /* size == 0 && r == NULL could be a non-error case (just\n";
5863 pr " * an ordinary zero-length buffer), so be careful ...\n";
5865 pr " if (size == 1 && r == %s)\n" error_code;
5866 pr " /* do_%s has already called reply_with_error */\n" name;
5871 (* If there are any FileOut parameters, then the impl must
5872 * send its own reply.
5875 List.exists (function FileOut _ -> true | _ -> false) (snd style) in
5877 pr " /* do_%s has already sent a reply */\n" name
5879 match fst style with
5880 | RErr -> pr " reply (NULL, NULL);\n"
5881 | RInt n | RInt64 n | RBool n ->
5882 pr " struct guestfs_%s_ret ret;\n" name;
5883 pr " ret.%s = r;\n" n;
5884 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
5886 | RConstString _ | RConstOptString _ ->
5887 failwithf "RConstString|RConstOptString cannot be used by daemon functions"
5889 pr " struct guestfs_%s_ret ret;\n" name;
5890 pr " ret.%s = r;\n" n;
5891 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
5894 | RStringList n | RHashtable n ->
5895 pr " struct guestfs_%s_ret ret;\n" name;
5896 pr " ret.%s.%s_len = count_strings (r);\n" n n;
5897 pr " ret.%s.%s_val = r;\n" n n;
5898 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
5900 pr " free_strings (r);\n"
5902 pr " struct guestfs_%s_ret ret;\n" name;
5903 pr " ret.%s = *r;\n" n;
5904 pr " reply ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
5906 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
5908 | RStructList (n, _) ->
5909 pr " struct guestfs_%s_ret ret;\n" name;
5910 pr " ret.%s = *r;\n" n;
5911 pr " reply ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
5913 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_ret, (char *) &ret);\n"
5916 pr " struct guestfs_%s_ret ret;\n" name;
5917 pr " ret.%s.%s_val = r;\n" n n;
5918 pr " ret.%s.%s_len = size;\n" n n;
5919 pr " reply ((xdrproc_t) &xdr_guestfs_%s_ret, (char *) &ret);\n"
5924 (* Free the args. *)
5925 (match snd style with
5930 pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_args, (char *) &args);\n"
5937 (* Dispatch function. *)
5938 pr "void dispatch_incoming_message (XDR *xdr_in)\n";
5940 pr " switch (proc_nr) {\n";
5943 fun (name, style, _, _, _, _, _) ->
5944 pr " case GUESTFS_PROC_%s:\n" (String.uppercase name);
5945 pr " %s_stub (xdr_in);\n" name;
5950 pr " reply_with_error (\"dispatch_incoming_message: unknown procedure number %%d, set LIBGUESTFS_PATH to point to the matching libguestfs appliance directory\", proc_nr);\n";
5955 (* LVM columns and tokenization functions. *)
5956 (* XXX This generates crap code. We should rethink how we
5962 pr "static const char *lvm_%s_cols = \"%s\";\n"
5963 typ (String.concat "," (List.map fst cols));
5966 pr "static int lvm_tokenize_%s (char *str, guestfs_int_lvm_%s *r)\n" typ typ;
5968 pr " char *tok, *p, *next;\n";
5972 pr " fprintf (stderr, \"%%s: <<%%s>>\\n\", __func__, str);\n";
5975 pr " if (!str) {\n";
5976 pr " fprintf (stderr, \"%%s: failed: passed a NULL string\\n\", __func__);\n";
5979 pr " if (!*str || c_isspace (*str)) {\n";
5980 pr " fprintf (stderr, \"%%s: failed: passed a empty string or one beginning with whitespace\\n\", __func__);\n";
5985 fun (name, coltype) ->
5986 pr " if (!tok) {\n";
5987 pr " fprintf (stderr, \"%%s: failed: string finished early, around token %%s\\n\", __func__, \"%s\");\n" name;
5990 pr " p = strchrnul (tok, ',');\n";
5991 pr " if (*p) next = p+1; else next = NULL;\n";
5992 pr " *p = '\\0';\n";
5995 pr " r->%s = strdup (tok);\n" name;
5996 pr " if (r->%s == NULL) {\n" name;
5997 pr " perror (\"strdup\");\n";
6001 pr " for (i = j = 0; i < 32; ++j) {\n";
6002 pr " if (tok[j] == '\\0') {\n";
6003 pr " fprintf (stderr, \"%%s: failed to parse UUID from '%%s'\\n\", __func__, tok);\n";
6005 pr " } else if (tok[j] != '-')\n";
6006 pr " r->%s[i++] = tok[j];\n" name;
6009 pr " if (sscanf (tok, \"%%\"SCNu64, &r->%s) != 1) {\n" name;
6010 pr " fprintf (stderr, \"%%s: failed to parse size '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
6014 pr " if (sscanf (tok, \"%%\"SCNi64, &r->%s) != 1) {\n" name;
6015 pr " fprintf (stderr, \"%%s: failed to parse int '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
6019 pr " if (tok[0] == '\\0')\n";
6020 pr " r->%s = -1;\n" name;
6021 pr " else if (sscanf (tok, \"%%f\", &r->%s) != 1) {\n" name;
6022 pr " fprintf (stderr, \"%%s: failed to parse float '%%s' from token %%s\\n\", __func__, tok, \"%s\");\n" name;
6025 | FBuffer | FInt32 | FUInt32 | FUInt64 | FChar ->
6026 assert false (* can never be an LVM column *)
6028 pr " tok = next;\n";
6031 pr " if (tok != NULL) {\n";
6032 pr " fprintf (stderr, \"%%s: failed: extra tokens at end of string\\n\", __func__);\n";
6039 pr "guestfs_int_lvm_%s_list *\n" typ;
6040 pr "parse_command_line_%ss (void)\n" typ;
6042 pr " char *out, *err;\n";
6043 pr " char *p, *pend;\n";
6045 pr " guestfs_int_lvm_%s_list *ret;\n" typ;
6046 pr " void *newp;\n";
6048 pr " ret = malloc (sizeof *ret);\n";
6049 pr " if (!ret) {\n";
6050 pr " reply_with_perror (\"malloc\");\n";
6051 pr " return NULL;\n";
6054 pr " ret->guestfs_int_lvm_%s_list_len = 0;\n" typ;
6055 pr " ret->guestfs_int_lvm_%s_list_val = NULL;\n" typ;
6057 pr " r = command (&out, &err,\n";
6058 pr " \"/sbin/lvm\", \"%ss\",\n" typ;
6059 pr " \"-o\", lvm_%s_cols, \"--unbuffered\", \"--noheadings\",\n" typ;
6060 pr " \"--nosuffix\", \"--separator\", \",\", \"--units\", \"b\", NULL);\n";
6061 pr " if (r == -1) {\n";
6062 pr " reply_with_error (\"%%s\", err);\n";
6063 pr " free (out);\n";
6064 pr " free (err);\n";
6065 pr " free (ret);\n";
6066 pr " return NULL;\n";
6069 pr " free (err);\n";
6071 pr " /* Tokenize each line of the output. */\n";
6074 pr " while (p) {\n";
6075 pr " pend = strchr (p, '\\n'); /* Get the next line of output. */\n";
6076 pr " if (pend) {\n";
6077 pr " *pend = '\\0';\n";
6081 pr " while (*p && c_isspace (*p)) /* Skip any leading whitespace. */\n";
6084 pr " if (!*p) { /* Empty line? Skip it. */\n";
6089 pr " /* Allocate some space to store this next entry. */\n";
6090 pr " newp = realloc (ret->guestfs_int_lvm_%s_list_val,\n" typ;
6091 pr " sizeof (guestfs_int_lvm_%s) * (i+1));\n" typ;
6092 pr " if (newp == NULL) {\n";
6093 pr " reply_with_perror (\"realloc\");\n";
6094 pr " free (ret->guestfs_int_lvm_%s_list_val);\n" typ;
6095 pr " free (ret);\n";
6096 pr " free (out);\n";
6097 pr " return NULL;\n";
6099 pr " ret->guestfs_int_lvm_%s_list_val = newp;\n" typ;
6101 pr " /* Tokenize the next entry. */\n";
6102 pr " r = lvm_tokenize_%s (p, &ret->guestfs_int_lvm_%s_list_val[i]);\n" typ typ;
6103 pr " if (r == -1) {\n";
6104 pr " reply_with_error (\"failed to parse output of '%ss' command\");\n" typ;
6105 pr " free (ret->guestfs_int_lvm_%s_list_val);\n" typ;
6106 pr " free (ret);\n";
6107 pr " free (out);\n";
6108 pr " return NULL;\n";
6115 pr " ret->guestfs_int_lvm_%s_list_len = i;\n" typ;
6117 pr " free (out);\n";
6118 pr " return ret;\n";
6121 ) ["pv", lvm_pv_cols; "vg", lvm_vg_cols; "lv", lvm_lv_cols]
6123 (* Generate a list of function names, for debugging in the daemon.. *)
6124 and generate_daemon_names () =
6125 generate_header CStyle GPLv2plus;
6127 pr "#include <config.h>\n";
6129 pr "#include \"daemon.h\"\n";
6132 pr "/* This array is indexed by proc_nr. See guestfs_protocol.x. */\n";
6133 pr "const char *function_names[] = {\n";
6135 fun (name, _, proc_nr, _, _, _, _) -> pr " [%d] = \"%s\",\n" proc_nr name
6139 (* Generate the optional groups for the daemon to implement
6140 * guestfs_available.
6142 and generate_daemon_optgroups_c () =
6143 generate_header CStyle GPLv2plus;
6145 pr "#include <config.h>\n";
6147 pr "#include \"daemon.h\"\n";
6148 pr "#include \"optgroups.h\"\n";
6151 pr "struct optgroup optgroups[] = {\n";
6154 pr " { \"%s\", optgroup_%s_available },\n" group group
6156 pr " { NULL, NULL }\n";
6159 and generate_daemon_optgroups_h () =
6160 generate_header CStyle GPLv2plus;
6164 pr "extern int optgroup_%s_available (void);\n" group
6167 (* Generate the tests. *)
6168 and generate_tests () =
6169 generate_header CStyle GPLv2plus;
6176 #include <sys/types.h>
6179 #include \"guestfs.h\"
6180 #include \"guestfs-internal.h\"
6182 static guestfs_h *g;
6183 static int suppress_error = 0;
6185 static void print_error (guestfs_h *g, void *data, const char *msg)
6187 if (!suppress_error)
6188 fprintf (stderr, \"%%s\\n\", msg);
6191 /* FIXME: nearly identical code appears in fish.c */
6192 static void print_strings (char *const *argv)
6196 for (argc = 0; argv[argc] != NULL; ++argc)
6197 printf (\"\\t%%s\\n\", argv[argc]);
6201 static void print_table (char const *const *argv)
6205 for (i = 0; argv[i] != NULL; i += 2)
6206 printf (\"%%s: %%s\\n\", argv[i], argv[i+1]);
6212 (* Generate a list of commands which are not tested anywhere. *)
6213 pr "static void no_test_warnings (void)\n";
6216 let hash : (string, bool) Hashtbl.t = Hashtbl.create 13 in
6218 fun (_, _, _, _, tests, _, _) ->
6219 let tests = filter_map (
6221 | (_, (Always|If _|Unless _), test) -> Some test
6222 | (_, Disabled, _) -> None
6224 let seq = List.concat (List.map seq_of_test tests) in
6225 let cmds_tested = List.map List.hd seq in
6226 List.iter (fun cmd -> Hashtbl.replace hash cmd true) cmds_tested
6230 fun (name, _, _, _, _, _, _) ->
6231 if not (Hashtbl.mem hash name) then
6232 pr " fprintf (stderr, \"warning: \\\"guestfs_%s\\\" has no tests\\n\");\n" name
6238 (* Generate the actual tests. Note that we generate the tests
6239 * in reverse order, deliberately, so that (in general) the
6240 * newest tests run first. This makes it quicker and easier to
6245 fun (name, _, _, flags, tests, _, _) ->
6246 mapi (generate_one_test name flags) tests
6247 ) (List.rev all_functions) in
6248 let test_names = List.concat test_names in
6249 let nr_tests = List.length test_names in
6252 int main (int argc, char *argv[])
6255 unsigned long int n_failed = 0;
6256 const char *filename;
6258 int nr_tests, test_num = 0;
6260 setbuf (stdout, NULL);
6262 no_test_warnings ();
6264 g = guestfs_create ();
6266 printf (\"guestfs_create FAILED\\n\");
6267 exit (EXIT_FAILURE);
6270 guestfs_set_error_handler (g, print_error, NULL);
6272 guestfs_set_path (g, \"../appliance\");
6274 filename = \"test1.img\";
6275 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
6278 exit (EXIT_FAILURE);
6280 if (lseek (fd, %d, SEEK_SET) == -1) {
6284 exit (EXIT_FAILURE);
6286 if (write (fd, &c, 1) == -1) {
6290 exit (EXIT_FAILURE);
6292 if (close (fd) == -1) {
6295 exit (EXIT_FAILURE);
6297 if (guestfs_add_drive (g, filename) == -1) {
6298 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
6299 exit (EXIT_FAILURE);
6302 filename = \"test2.img\";
6303 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
6306 exit (EXIT_FAILURE);
6308 if (lseek (fd, %d, SEEK_SET) == -1) {
6312 exit (EXIT_FAILURE);
6314 if (write (fd, &c, 1) == -1) {
6318 exit (EXIT_FAILURE);
6320 if (close (fd) == -1) {
6323 exit (EXIT_FAILURE);
6325 if (guestfs_add_drive (g, filename) == -1) {
6326 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
6327 exit (EXIT_FAILURE);
6330 filename = \"test3.img\";
6331 fd = open (filename, O_WRONLY|O_CREAT|O_NOCTTY|O_NONBLOCK|O_TRUNC, 0666);
6334 exit (EXIT_FAILURE);
6336 if (lseek (fd, %d, SEEK_SET) == -1) {
6340 exit (EXIT_FAILURE);
6342 if (write (fd, &c, 1) == -1) {
6346 exit (EXIT_FAILURE);
6348 if (close (fd) == -1) {
6351 exit (EXIT_FAILURE);
6353 if (guestfs_add_drive (g, filename) == -1) {
6354 printf (\"guestfs_add_drive %%s FAILED\\n\", filename);
6355 exit (EXIT_FAILURE);
6358 if (guestfs_add_drive_ro (g, \"../images/test.iso\") == -1) {
6359 printf (\"guestfs_add_drive_ro ../images/test.iso FAILED\\n\");
6360 exit (EXIT_FAILURE);
6363 if (guestfs_launch (g) == -1) {
6364 printf (\"guestfs_launch FAILED\\n\");
6365 exit (EXIT_FAILURE);
6368 /* Set a timeout in case qemu hangs during launch (RHBZ#505329). */
6371 /* Cancel previous alarm. */
6376 " (500 * 1024 * 1024) (50 * 1024 * 1024) (10 * 1024 * 1024) nr_tests;
6380 pr " test_num++;\n";
6381 pr " printf (\"%%3d/%%3d %s\\n\", test_num, nr_tests);\n" test_name;
6382 pr " if (%s () == -1) {\n" test_name;
6383 pr " printf (\"%s FAILED\\n\");\n" test_name;
6384 pr " n_failed++;\n";
6389 pr " guestfs_close (g);\n";
6390 pr " unlink (\"test1.img\");\n";
6391 pr " unlink (\"test2.img\");\n";
6392 pr " unlink (\"test3.img\");\n";
6395 pr " if (n_failed > 0) {\n";
6396 pr " printf (\"***** %%lu / %%d tests FAILED *****\\n\", n_failed, nr_tests);\n";
6397 pr " exit (EXIT_FAILURE);\n";
6401 pr " exit (EXIT_SUCCESS);\n";
6404 and generate_one_test name flags i (init, prereq, test) =
6405 let test_name = sprintf "test_%s_%d" name i in
6408 static int %s_skip (void)
6412 str = getenv (\"TEST_ONLY\");
6414 return strstr (str, \"%s\") == NULL;
6415 str = getenv (\"SKIP_%s\");
6416 if (str && STREQ (str, \"1\")) return 1;
6417 str = getenv (\"SKIP_TEST_%s\");
6418 if (str && STREQ (str, \"1\")) return 1;
6422 " test_name name (String.uppercase test_name) (String.uppercase name);
6425 | Disabled | Always -> ()
6426 | If code | Unless code ->
6427 pr "static int %s_prereq (void)\n" test_name;
6435 static int %s (void)
6438 printf (\" %%s skipped (reason: environment variable set)\\n\", \"%s\");
6442 " test_name test_name test_name;
6444 (* Optional functions should only be tested if the relevant
6445 * support is available in the daemon.
6451 pr " const char *groups[] = { \"%s\", NULL };\n" group;
6453 pr " suppress_error = 1;\n";
6454 pr " r = guestfs_available (g, (char **) groups);\n";
6455 pr " suppress_error = 0;\n";
6456 pr " if (r == -1) {\n";
6457 pr " printf (\" %%s skipped (reason: group %%s not available in daemon)\\n\", \"%s\", groups[0]);\n" test_name;
6466 pr " printf (\" %%s skipped (reason: test disabled in generator)\\n\", \"%s\");\n" test_name
6468 pr " if (! %s_prereq ()) {\n" test_name;
6469 pr " printf (\" %%s skipped (reason: test prerequisite)\\n\", \"%s\");\n" test_name;
6473 generate_one_test_body name i test_name init test;
6475 pr " if (%s_prereq ()) {\n" test_name;
6476 pr " printf (\" %%s skipped (reason: test prerequisite)\\n\", \"%s\");\n" test_name;
6480 generate_one_test_body name i test_name init test;
6482 generate_one_test_body name i test_name init test
6490 and generate_one_test_body name i test_name init test =
6492 | InitNone (* XXX at some point, InitNone and InitEmpty became
6493 * folded together as the same thing. Really we should
6494 * make InitNone do nothing at all, but the tests may
6495 * need to be checked to make sure this is OK.
6498 pr " /* InitNone|InitEmpty for %s */\n" test_name;
6499 List.iter (generate_test_command_call test_name)
6500 [["blockdev_setrw"; "/dev/sda"];
6504 pr " /* InitPartition for %s: create /dev/sda1 */\n" test_name;
6505 List.iter (generate_test_command_call test_name)
6506 [["blockdev_setrw"; "/dev/sda"];
6509 ["part_disk"; "/dev/sda"; "mbr"]]
6511 pr " /* InitBasicFS for %s: create ext2 on /dev/sda1 */\n" test_name;
6512 List.iter (generate_test_command_call test_name)
6513 [["blockdev_setrw"; "/dev/sda"];
6516 ["part_disk"; "/dev/sda"; "mbr"];
6517 ["mkfs"; "ext2"; "/dev/sda1"];
6518 ["mount_options"; ""; "/dev/sda1"; "/"]]
6519 | InitBasicFSonLVM ->
6520 pr " /* InitBasicFSonLVM for %s: create ext2 on /dev/VG/LV */\n"
6522 List.iter (generate_test_command_call test_name)
6523 [["blockdev_setrw"; "/dev/sda"];
6526 ["part_disk"; "/dev/sda"; "mbr"];
6527 ["pvcreate"; "/dev/sda1"];
6528 ["vgcreate"; "VG"; "/dev/sda1"];
6529 ["lvcreate"; "LV"; "VG"; "8"];
6530 ["mkfs"; "ext2"; "/dev/VG/LV"];
6531 ["mount_options"; ""; "/dev/VG/LV"; "/"]]
6533 pr " /* InitISOFS for %s */\n" test_name;
6534 List.iter (generate_test_command_call test_name)
6535 [["blockdev_setrw"; "/dev/sda"];
6538 ["mount_ro"; "/dev/sdd"; "/"]]
6541 let get_seq_last = function
6543 failwithf "%s: you cannot use [] (empty list) when expecting a command"
6546 let seq = List.rev seq in
6547 List.rev (List.tl seq), List.hd seq
6552 pr " /* TestRun for %s (%d) */\n" name i;
6553 List.iter (generate_test_command_call test_name) seq
6554 | TestOutput (seq, expected) ->
6555 pr " /* TestOutput for %s (%d) */\n" name i;
6556 pr " const char *expected = \"%s\";\n" (c_quote expected);
6557 let seq, last = get_seq_last seq in
6559 pr " if (STRNEQ (r, expected)) {\n";
6560 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r);\n" test_name;
6564 List.iter (generate_test_command_call test_name) seq;
6565 generate_test_command_call ~test test_name last
6566 | TestOutputList (seq, expected) ->
6567 pr " /* TestOutputList for %s (%d) */\n" name i;
6568 let seq, last = get_seq_last seq in
6572 pr " if (!r[%d]) {\n" i;
6573 pr " fprintf (stderr, \"%s: short list returned from command\\n\");\n" test_name;
6574 pr " print_strings (r);\n";
6578 pr " const char *expected = \"%s\";\n" (c_quote str);
6579 pr " if (STRNEQ (r[%d], expected)) {\n" i;
6580 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r[%d]);\n" test_name i;
6585 pr " if (r[%d] != NULL) {\n" (List.length expected);
6586 pr " fprintf (stderr, \"%s: extra elements returned from command\\n\");\n"
6588 pr " print_strings (r);\n";
6592 List.iter (generate_test_command_call test_name) seq;
6593 generate_test_command_call ~test test_name last
6594 | TestOutputListOfDevices (seq, expected) ->
6595 pr " /* TestOutputListOfDevices for %s (%d) */\n" name i;
6596 let seq, last = get_seq_last seq in
6600 pr " if (!r[%d]) {\n" i;
6601 pr " fprintf (stderr, \"%s: short list returned from command\\n\");\n" test_name;
6602 pr " print_strings (r);\n";
6606 pr " const char *expected = \"%s\";\n" (c_quote str);
6607 pr " r[%d][5] = 's';\n" i;
6608 pr " if (STRNEQ (r[%d], expected)) {\n" i;
6609 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r[%d]);\n" test_name i;
6614 pr " if (r[%d] != NULL) {\n" (List.length expected);
6615 pr " fprintf (stderr, \"%s: extra elements returned from command\\n\");\n"
6617 pr " print_strings (r);\n";
6621 List.iter (generate_test_command_call test_name) seq;
6622 generate_test_command_call ~test test_name last
6623 | TestOutputInt (seq, expected) ->
6624 pr " /* TestOutputInt for %s (%d) */\n" name i;
6625 let seq, last = get_seq_last seq in
6627 pr " if (r != %d) {\n" expected;
6628 pr " fprintf (stderr, \"%s: expected %d but got %%d\\n\","
6634 List.iter (generate_test_command_call test_name) seq;
6635 generate_test_command_call ~test test_name last
6636 | TestOutputIntOp (seq, op, expected) ->
6637 pr " /* TestOutputIntOp for %s (%d) */\n" name i;
6638 let seq, last = get_seq_last seq in
6640 pr " if (! (r %s %d)) {\n" op expected;
6641 pr " fprintf (stderr, \"%s: expected %s %d but got %%d\\n\","
6642 test_name op expected;
6647 List.iter (generate_test_command_call test_name) seq;
6648 generate_test_command_call ~test test_name last
6649 | TestOutputTrue seq ->
6650 pr " /* TestOutputTrue for %s (%d) */\n" name i;
6651 let seq, last = get_seq_last seq in
6654 pr " fprintf (stderr, \"%s: expected true, got false\\n\");\n"
6659 List.iter (generate_test_command_call test_name) seq;
6660 generate_test_command_call ~test test_name last
6661 | TestOutputFalse seq ->
6662 pr " /* TestOutputFalse for %s (%d) */\n" name i;
6663 let seq, last = get_seq_last seq in
6666 pr " fprintf (stderr, \"%s: expected false, got true\\n\");\n"
6671 List.iter (generate_test_command_call test_name) seq;
6672 generate_test_command_call ~test test_name last
6673 | TestOutputLength (seq, expected) ->
6674 pr " /* TestOutputLength for %s (%d) */\n" name i;
6675 let seq, last = get_seq_last seq in
6678 pr " for (j = 0; j < %d; ++j)\n" expected;
6679 pr " if (r[j] == NULL) {\n";
6680 pr " fprintf (stderr, \"%s: short list returned\\n\");\n"
6682 pr " print_strings (r);\n";
6685 pr " if (r[j] != NULL) {\n";
6686 pr " fprintf (stderr, \"%s: long list returned\\n\");\n"
6688 pr " print_strings (r);\n";
6692 List.iter (generate_test_command_call test_name) seq;
6693 generate_test_command_call ~test test_name last
6694 | TestOutputBuffer (seq, expected) ->
6695 pr " /* TestOutputBuffer for %s (%d) */\n" name i;
6696 pr " const char *expected = \"%s\";\n" (c_quote expected);
6697 let seq, last = get_seq_last seq in
6698 let len = String.length expected in
6700 pr " if (size != %d) {\n" len;
6701 pr " fprintf (stderr, \"%s: returned size of buffer wrong, expected %d but got %%zu\\n\", size);\n" test_name len;
6704 pr " if (STRNEQLEN (r, expected, size)) {\n";
6705 pr " fprintf (stderr, \"%s: expected \\\"%%s\\\" but got \\\"%%s\\\"\\n\", expected, r);\n" test_name;
6709 List.iter (generate_test_command_call test_name) seq;
6710 generate_test_command_call ~test test_name last
6711 | TestOutputStruct (seq, checks) ->
6712 pr " /* TestOutputStruct for %s (%d) */\n" name i;
6713 let seq, last = get_seq_last seq in
6717 | CompareWithInt (field, expected) ->
6718 pr " if (r->%s != %d) {\n" field expected;
6719 pr " fprintf (stderr, \"%s: %s was %%d, expected %d\\n\",\n"
6720 test_name field expected;
6721 pr " (int) r->%s);\n" field;
6724 | CompareWithIntOp (field, op, expected) ->
6725 pr " if (!(r->%s %s %d)) {\n" field op expected;
6726 pr " fprintf (stderr, \"%s: %s was %%d, expected %s %d\\n\",\n"
6727 test_name field op expected;
6728 pr " (int) r->%s);\n" field;
6731 | CompareWithString (field, expected) ->
6732 pr " if (STRNEQ (r->%s, \"%s\")) {\n" field expected;
6733 pr " fprintf (stderr, \"%s: %s was \"%%s\", expected \"%s\"\\n\",\n"
6734 test_name field expected;
6735 pr " r->%s);\n" field;
6738 | CompareFieldsIntEq (field1, field2) ->
6739 pr " if (r->%s != r->%s) {\n" field1 field2;
6740 pr " fprintf (stderr, \"%s: %s (%%d) <> %s (%%d)\\n\",\n"
6741 test_name field1 field2;
6742 pr " (int) r->%s, (int) r->%s);\n" field1 field2;
6745 | CompareFieldsStrEq (field1, field2) ->
6746 pr " if (STRNEQ (r->%s, r->%s)) {\n" field1 field2;
6747 pr " fprintf (stderr, \"%s: %s (\"%%s\") <> %s (\"%%s\")\\n\",\n"
6748 test_name field1 field2;
6749 pr " r->%s, r->%s);\n" field1 field2;
6754 List.iter (generate_test_command_call test_name) seq;
6755 generate_test_command_call ~test test_name last
6756 | TestLastFail seq ->
6757 pr " /* TestLastFail for %s (%d) */\n" name i;
6758 let seq, last = get_seq_last seq in
6759 List.iter (generate_test_command_call test_name) seq;
6760 generate_test_command_call test_name ~expect_error:true last
6762 (* Generate the code to run a command, leaving the result in 'r'.
6763 * If you expect to get an error then you should set expect_error:true.
6765 and generate_test_command_call ?(expect_error = false) ?test test_name cmd =
6767 | [] -> assert false
6769 (* Look up the command to find out what args/ret it has. *)
6772 let _, style, _, _, _, _, _ =
6773 List.find (fun (n, _, _, _, _, _, _) -> n = name) all_functions in
6776 failwithf "%s: in test, command %s was not found" test_name name in
6778 if List.length (snd style) <> List.length args then
6779 failwithf "%s: in test, wrong number of args given to %s"
6786 | OptString n, "NULL" -> ()
6789 | Dev_or_Path n, arg
6791 | OptString n, arg ->
6792 pr " const char *%s = \"%s\";\n" n (c_quote arg);
6796 | FileIn _, _ | FileOut _, _ -> ()
6797 | StringList n, "" | DeviceList n, "" ->
6798 pr " const char *const %s[1] = { NULL };\n" n
6799 | StringList n, arg | DeviceList n, arg ->
6800 let strs = string_split " " arg in
6803 pr " const char *%s_%d = \"%s\";\n" n i (c_quote str);
6805 pr " const char *const %s[] = {\n" n;
6807 fun i _ -> pr " %s_%d,\n" n i
6811 ) (List.combine (snd style) args);
6814 match fst style with
6815 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
6816 | RInt64 _ -> pr " int64_t r;\n"; "-1"
6817 | RConstString _ | RConstOptString _ ->
6818 pr " const char *r;\n"; "NULL"
6819 | RString _ -> pr " char *r;\n"; "NULL"
6820 | RStringList _ | RHashtable _ ->
6824 | RStruct (_, typ) ->
6825 pr " struct guestfs_%s *r;\n" typ; "NULL"
6826 | RStructList (_, typ) ->
6827 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
6830 pr " size_t size;\n";
6833 pr " suppress_error = %d;\n" (if expect_error then 1 else 0);
6834 pr " r = guestfs_%s (g" name;
6836 (* Generate the parameters. *)
6839 | OptString _, "NULL" -> pr ", NULL"
6841 | Device n, _ | Dev_or_Path n, _
6845 | FileIn _, arg | FileOut _, arg ->
6846 pr ", \"%s\"" (c_quote arg)
6847 | StringList n, _ | DeviceList n, _ ->
6848 pr ", (char **) %s" n
6851 try int_of_string arg
6852 with Failure "int_of_string" ->
6853 failwithf "%s: expecting an int, but got '%s'" test_name arg in
6857 try Int64.of_string arg
6858 with Failure "int_of_string" ->
6859 failwithf "%s: expecting an int64, but got '%s'" test_name arg in
6862 let b = bool_of_string arg in pr ", %d" (if b then 1 else 0)
6863 ) (List.combine (snd style) args);
6865 (match fst style with
6866 | RBufferOut _ -> pr ", &size"
6872 if not expect_error then
6873 pr " if (r == %s)\n" error_code
6875 pr " if (r != %s)\n" error_code;
6878 (* Insert the test code. *)
6884 (match fst style with
6885 | RErr | RInt _ | RInt64 _ | RBool _
6886 | RConstString _ | RConstOptString _ -> ()
6887 | RString _ | RBufferOut _ -> pr " free (r);\n"
6888 | RStringList _ | RHashtable _ ->
6889 pr " for (i = 0; r[i] != NULL; ++i)\n";
6890 pr " free (r[i]);\n";
6892 | RStruct (_, typ) ->
6893 pr " guestfs_free_%s (r);\n" typ
6894 | RStructList (_, typ) ->
6895 pr " guestfs_free_%s_list (r);\n" typ
6901 let str = replace_str str "\r" "\\r" in
6902 let str = replace_str str "\n" "\\n" in
6903 let str = replace_str str "\t" "\\t" in
6904 let str = replace_str str "\000" "\\0" in
6907 (* Generate a lot of different functions for guestfish. *)
6908 and generate_fish_cmds () =
6909 generate_header CStyle GPLv2plus;
6913 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
6915 let all_functions_sorted =
6917 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
6918 ) all_functions_sorted in
6920 pr "#include <config.h>\n";
6922 pr "#include <stdio.h>\n";
6923 pr "#include <stdlib.h>\n";
6924 pr "#include <string.h>\n";
6925 pr "#include <inttypes.h>\n";
6927 pr "#include <guestfs.h>\n";
6928 pr "#include \"c-ctype.h\"\n";
6929 pr "#include \"full-write.h\"\n";
6930 pr "#include \"xstrtol.h\"\n";
6931 pr "#include \"fish.h\"\n";
6934 (* list_commands function, which implements guestfish -h *)
6935 pr "void list_commands (void)\n";
6937 pr " printf (\" %%-16s %%s\\n\", _(\"Command\"), _(\"Description\"));\n";
6938 pr " list_builtin_commands ();\n";
6940 fun (name, _, _, flags, _, shortdesc, _) ->
6941 let name = replace_char name '_' '-' in
6942 pr " printf (\"%%-20s %%s\\n\", \"%s\", _(\"%s\"));\n"
6944 ) all_functions_sorted;
6945 pr " printf (\" %%s\\n\",";
6946 pr " _(\"Use -h <cmd> / help <cmd> to show detailed help for a command.\"));\n";
6950 (* display_command function, which implements guestfish -h cmd *)
6951 pr "void display_command (const char *cmd)\n";
6954 fun (name, style, _, flags, _, shortdesc, longdesc) ->
6955 let name2 = replace_char name '_' '-' in
6957 try find_map (function FishAlias n -> Some n | _ -> None) flags
6958 with Not_found -> name in
6959 let longdesc = replace_str longdesc "C<guestfs_" "C<" in
6961 match snd style with
6965 name2 (String.concat " " (List.map name_of_argt args)) in
6968 if List.mem ProtocolLimitWarning flags then
6969 ("\n\n" ^ protocol_limit_warning)
6972 (* For DangerWillRobinson commands, we should probably have
6973 * guestfish prompt before allowing you to use them (especially
6974 * in interactive mode). XXX
6978 if List.mem DangerWillRobinson flags then
6979 ("\n\n" ^ danger_will_robinson)
6984 match deprecation_notice flags with
6986 | Some txt -> "\n\n" ^ txt in
6988 let describe_alias =
6989 if name <> alias then
6990 sprintf "\n\nYou can use '%s' as an alias for this command." alias
6994 pr "STRCASEEQ (cmd, \"%s\")" name;
6995 if name <> name2 then
6996 pr " || STRCASEEQ (cmd, \"%s\")" name2;
6997 if name <> alias then
6998 pr " || STRCASEEQ (cmd, \"%s\")" alias;
7000 pr " pod2text (\"%s\", _(\"%s\"), %S);\n"
7002 ("=head1 SYNOPSIS\n\n " ^ synopsis ^ "\n\n" ^
7003 "=head1 DESCRIPTION\n\n" ^
7004 longdesc ^ warnings ^ describe_alias);
7007 pr " display_builtin_command (cmd);\n";
7011 let emit_print_list_function typ =
7012 pr "static void print_%s_list (struct guestfs_%s_list *%ss)\n"
7015 pr " unsigned int i;\n";
7017 pr " for (i = 0; i < %ss->len; ++i) {\n" typ;
7018 pr " printf (\"[%%d] = {\\n\", i);\n";
7019 pr " print_%s_indent (&%ss->val[i], \" \");\n" typ typ;
7020 pr " printf (\"}\\n\");\n";
7026 (* print_* functions *)
7030 List.exists (function (_, (FUUID|FBuffer)) -> true | _ -> false) cols in
7032 pr "static void print_%s_indent (struct guestfs_%s *%s, const char *indent)\n" typ typ typ;
7035 pr " unsigned int i;\n";
7041 pr " printf (\"%%s%s: %%s\\n\", indent, %s->%s);\n" name typ name
7043 pr " printf (\"%%s%s: \", indent);\n" name;
7044 pr " for (i = 0; i < 32; ++i)\n";
7045 pr " printf (\"%%c\", %s->%s[i]);\n" typ name;
7046 pr " printf (\"\\n\");\n"
7048 pr " printf (\"%%s%s: \", indent);\n" name;
7049 pr " for (i = 0; i < %s->%s_len; ++i)\n" typ name;
7050 pr " if (c_isprint (%s->%s[i]))\n" typ name;
7051 pr " printf (\"%%c\", %s->%s[i]);\n" typ name;
7053 pr " printf (\"\\\\x%%02x\", %s->%s[i]);\n" typ name;
7054 pr " printf (\"\\n\");\n"
7055 | name, (FUInt64|FBytes) ->
7056 pr " printf (\"%%s%s: %%\" PRIu64 \"\\n\", indent, %s->%s);\n"
7059 pr " printf (\"%%s%s: %%\" PRIi64 \"\\n\", indent, %s->%s);\n"
7062 pr " printf (\"%%s%s: %%\" PRIu32 \"\\n\", indent, %s->%s);\n"
7065 pr " printf (\"%%s%s: %%\" PRIi32 \"\\n\", indent, %s->%s);\n"
7068 pr " printf (\"%%s%s: %%c\\n\", indent, %s->%s);\n"
7070 | name, FOptPercent ->
7071 pr " if (%s->%s >= 0) printf (\"%%s%s: %%g %%%%\\n\", indent, %s->%s);\n"
7072 typ name name typ name;
7073 pr " else printf (\"%%s%s: \\n\", indent);\n" name
7079 (* Emit a print_TYPE_list function definition only if that function is used. *)
7082 | typ, (RStructListOnly | RStructAndList) ->
7083 (* generate the function for typ *)
7084 emit_print_list_function typ
7085 | typ, _ -> () (* empty *)
7086 ) (rstructs_used_by all_functions);
7088 (* Emit a print_TYPE function definition only if that function is used. *)
7091 | typ, (RStructOnly | RStructAndList) ->
7092 pr "static void print_%s (struct guestfs_%s *%s)\n" typ typ typ;
7094 pr " print_%s_indent (%s, \"\");\n" typ typ;
7097 | typ, _ -> () (* empty *)
7098 ) (rstructs_used_by all_functions);
7100 (* run_<action> actions *)
7102 fun (name, style, _, flags, _, _, _) ->
7103 pr "static int run_%s (const char *cmd, int argc, char *argv[])\n" name;
7105 (match fst style with
7108 | RBool _ -> pr " int r;\n"
7109 | RInt64 _ -> pr " int64_t r;\n"
7110 | RConstString _ | RConstOptString _ -> pr " const char *r;\n"
7111 | RString _ -> pr " char *r;\n"
7112 | RStringList _ | RHashtable _ -> pr " char **r;\n"
7113 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ
7114 | RStructList (_, typ) -> pr " struct guestfs_%s_list *r;\n" typ
7117 pr " size_t size;\n";
7125 | FileOut n -> pr " const char *%s;\n" n
7127 | Dev_or_Path n -> pr " char *%s;\n" n
7128 | StringList n | DeviceList n -> pr " char **%s;\n" n
7129 | Bool n -> pr " int %s;\n" n
7130 | Int n -> pr " int %s;\n" n
7131 | Int64 n -> pr " int64_t %s;\n" n
7134 (* Check and convert parameters. *)
7135 let argc_expected = List.length (snd style) in
7136 pr " if (argc != %d) {\n" argc_expected;
7137 pr " fprintf (stderr, _(\"%%s should have %%d parameter(s)\\n\"), cmd, %d);\n"
7139 pr " fprintf (stderr, _(\"type 'help %%s' for help on %%s\\n\"), cmd, cmd);\n";
7143 let parse_integer fn fntyp rtyp range name i =
7145 pr " strtol_error xerr;\n";
7146 pr " %s r;\n" fntyp;
7148 pr " xerr = %s (argv[%d], NULL, 0, &r, \"\");\n" fn i;
7149 pr " if (xerr != LONGINT_OK) {\n";
7150 pr " fprintf (stderr,\n";
7151 pr " _(\"%%s: %%s: invalid integer parameter (%%s returned %%d)\\n\"),\n";
7152 pr " cmd, \"%s\", \"%s\", xerr);\n" name fn;
7157 | Some (min, max, comment) ->
7158 pr " /* %s */\n" comment;
7159 pr " if (r < %s || r > %s) {\n" min max;
7160 pr " fprintf (stderr, _(\"%%s: %%s: integer out of range\\n\"), cmd, \"%s\");\n"
7164 pr " /* The check above should ensure this assignment does not overflow. */\n";
7166 pr " %s = r;\n" name;
7175 pr " %s = argv[%d];\n" name i
7177 | Dev_or_Path name ->
7178 pr " %s = resolve_win_path (argv[%d]);\n" name i;
7179 pr " if (%s == NULL) return -1;\n" name
7181 pr " %s = STRNEQ (argv[%d], \"\") ? argv[%d] : NULL;\n"
7184 pr " %s = STRNEQ (argv[%d], \"-\") ? argv[%d] : \"/dev/stdin\";\n"
7187 pr " %s = STRNEQ (argv[%d], \"-\") ? argv[%d] : \"/dev/stdout\";\n"
7189 | StringList name | DeviceList name ->
7190 pr " %s = parse_string_list (argv[%d]);\n" name i;
7191 pr " if (%s == NULL) return -1;\n" name;
7193 pr " %s = is_true (argv[%d]) ? 1 : 0;\n" name i
7196 let min = "(-(2LL<<30))"
7197 and max = "((2LL<<30)-1)"
7199 "The Int type in the generator is a signed 31 bit int." in
7200 Some (min, max, comment) in
7201 parse_integer "xstrtol" "long" "int" range name i
7203 parse_integer "xstrtoll" "long long" "int64_t" None name i
7206 (* Call C API function. *)
7208 try find_map (function FishAction n -> Some n | _ -> None) flags
7209 with Not_found -> sprintf "guestfs_%s" name in
7211 generate_c_call_args ~handle:"g" style;
7216 | Device name | String name
7217 | OptString name | FileIn name | FileOut name | Bool name
7218 | Int name | Int64 name -> ()
7219 | Pathname name | Dev_or_Path name ->
7220 pr " free (%s);\n" name
7221 | StringList name | DeviceList name ->
7222 pr " free_strings (%s);\n" name
7225 (* Check return value for errors and display command results. *)
7226 (match fst style with
7227 | RErr -> pr " return r;\n"
7229 pr " if (r == -1) return -1;\n";
7230 pr " printf (\"%%d\\n\", r);\n";
7233 pr " if (r == -1) return -1;\n";
7234 pr " printf (\"%%\" PRIi64 \"\\n\", r);\n";
7237 pr " if (r == -1) return -1;\n";
7238 pr " if (r) printf (\"true\\n\"); else printf (\"false\\n\");\n";
7241 pr " if (r == NULL) return -1;\n";
7242 pr " printf (\"%%s\\n\", r);\n";
7244 | RConstOptString _ ->
7245 pr " printf (\"%%s\\n\", r ? : \"(null)\");\n";
7248 pr " if (r == NULL) return -1;\n";
7249 pr " printf (\"%%s\\n\", r);\n";
7253 pr " if (r == NULL) return -1;\n";
7254 pr " print_strings (r);\n";
7255 pr " free_strings (r);\n";
7257 | RStruct (_, typ) ->
7258 pr " if (r == NULL) return -1;\n";
7259 pr " print_%s (r);\n" typ;
7260 pr " guestfs_free_%s (r);\n" typ;
7262 | RStructList (_, typ) ->
7263 pr " if (r == NULL) return -1;\n";
7264 pr " print_%s_list (r);\n" typ;
7265 pr " guestfs_free_%s_list (r);\n" typ;
7268 pr " if (r == NULL) return -1;\n";
7269 pr " print_table (r);\n";
7270 pr " free_strings (r);\n";
7273 pr " if (r == NULL) return -1;\n";
7274 pr " if (full_write (1, r, size) != size) {\n";
7275 pr " perror (\"write\");\n";
7286 (* run_action function *)
7287 pr "int run_action (const char *cmd, int argc, char *argv[])\n";
7290 fun (name, _, _, flags, _, _, _) ->
7291 let name2 = replace_char name '_' '-' in
7293 try find_map (function FishAlias n -> Some n | _ -> None) flags
7294 with Not_found -> name in
7296 pr "STRCASEEQ (cmd, \"%s\")" name;
7297 if name <> name2 then
7298 pr " || STRCASEEQ (cmd, \"%s\")" name2;
7299 if name <> alias then
7300 pr " || STRCASEEQ (cmd, \"%s\")" alias;
7302 pr " return run_%s (cmd, argc, argv);\n" name;
7306 pr " fprintf (stderr, _(\"%%s: unknown command\\n\"), cmd);\n";
7313 (* Readline completion for guestfish. *)
7314 and generate_fish_completion () =
7315 generate_header CStyle GPLv2plus;
7319 fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
7329 #ifdef HAVE_LIBREADLINE
7330 #include <readline/readline.h>
7335 #ifdef HAVE_LIBREADLINE
7337 static const char *const commands[] = {
7338 BUILTIN_COMMANDS_FOR_COMPLETION,
7341 (* Get the commands, including the aliases. They don't need to be
7342 * sorted - the generator() function just does a dumb linear search.
7346 fun (name, _, _, flags, _, _, _) ->
7347 let name2 = replace_char name '_' '-' in
7349 try find_map (function FishAlias n -> Some n | _ -> None) flags
7350 with Not_found -> name in
7352 if name <> alias then [name2; alias] else [name2]
7354 let commands = List.flatten commands in
7356 List.iter (pr " \"%s\",\n") commands;
7362 generator (const char *text, int state)
7364 static int index, len;
7369 len = strlen (text);
7372 rl_attempted_completion_over = 1;
7374 while ((name = commands[index]) != NULL) {
7376 if (STRCASEEQLEN (name, text, len))
7377 return strdup (name);
7383 #endif /* HAVE_LIBREADLINE */
7385 char **do_completion (const char *text, int start, int end)
7387 char **matches = NULL;
7389 #ifdef HAVE_LIBREADLINE
7390 rl_completion_append_character = ' ';
7393 matches = rl_completion_matches (text, generator);
7394 else if (complete_dest_paths)
7395 matches = rl_completion_matches (text, complete_dest_paths_generator);
7402 (* Generate the POD documentation for guestfish. *)
7403 and generate_fish_actions_pod () =
7404 let all_functions_sorted =
7406 fun (_, _, _, flags, _, _, _) ->
7407 not (List.mem NotInFish flags || List.mem NotInDocs flags)
7408 ) all_functions_sorted in
7410 let rex = Str.regexp "C<guestfs_\\([^>]+\\)>" in
7413 fun (name, style, _, flags, _, _, longdesc) ->
7415 Str.global_substitute rex (
7418 try Str.matched_group 1 s
7420 failwithf "error substituting C<guestfs_...> in longdesc of function %s" name in
7421 "C<" ^ replace_char sub '_' '-' ^ ">"
7423 let name = replace_char name '_' '-' in
7425 try find_map (function FishAlias n -> Some n | _ -> None) flags
7426 with Not_found -> name in
7428 pr "=head2 %s" name;
7429 if name <> alias then
7436 | Pathname n | Device n | Dev_or_Path n | String n -> pr " %s" n
7437 | OptString n -> pr " %s" n
7438 | StringList n | DeviceList n -> pr " '%s ...'" n
7439 | Bool _ -> pr " true|false"
7440 | Int n -> pr " %s" n
7441 | Int64 n -> pr " %s" n
7442 | FileIn n | FileOut n -> pr " (%s|-)" n
7446 pr "%s\n\n" longdesc;
7448 if List.exists (function FileIn _ | FileOut _ -> true
7449 | _ -> false) (snd style) then
7450 pr "Use C<-> instead of a filename to read/write from stdin/stdout.\n\n";
7452 if List.mem ProtocolLimitWarning flags then
7453 pr "%s\n\n" protocol_limit_warning;
7455 if List.mem DangerWillRobinson flags then
7456 pr "%s\n\n" danger_will_robinson;
7458 match deprecation_notice flags with
7460 | Some txt -> pr "%s\n\n" txt
7461 ) all_functions_sorted
7463 (* Generate a C function prototype. *)
7464 and generate_prototype ?(extern = true) ?(static = false) ?(semicolon = true)
7465 ?(single_line = false) ?(newline = false) ?(in_daemon = false)
7467 ?handle name style =
7468 if extern then pr "extern ";
7469 if static then pr "static ";
7470 (match fst style with
7472 | RInt _ -> pr "int "
7473 | RInt64 _ -> pr "int64_t "
7474 | RBool _ -> pr "int "
7475 | RConstString _ | RConstOptString _ -> pr "const char *"
7476 | RString _ | RBufferOut _ -> pr "char *"
7477 | RStringList _ | RHashtable _ -> pr "char **"
7478 | RStruct (_, typ) ->
7479 if not in_daemon then pr "struct guestfs_%s *" typ
7480 else pr "guestfs_int_%s *" typ
7481 | RStructList (_, typ) ->
7482 if not in_daemon then pr "struct guestfs_%s_list *" typ
7483 else pr "guestfs_int_%s_list *" typ
7485 let is_RBufferOut = match fst style with RBufferOut _ -> true | _ -> false in
7486 pr "%s%s (" prefix name;
7487 if handle = None && List.length (snd style) = 0 && not is_RBufferOut then
7490 let comma = ref false in
7493 | Some handle -> pr "guestfs_h *%s" handle; comma := true
7497 if single_line then pr ", " else pr ",\n\t\t"
7504 | Device n | Dev_or_Path n
7508 pr "const char *%s" n
7509 | StringList n | DeviceList n ->
7511 pr "char *const *%s" n
7512 | Bool n -> next (); pr "int %s" n
7513 | Int n -> next (); pr "int %s" n
7514 | Int64 n -> next (); pr "int64_t %s" n
7517 if not in_daemon then (next (); pr "const char *%s" n)
7519 if is_RBufferOut then (next (); pr "size_t *size_r");
7522 if semicolon then pr ";";
7523 if newline then pr "\n"
7525 (* Generate C call arguments, eg "(handle, foo, bar)" *)
7526 and generate_c_call_args ?handle ?(decl = false) style =
7528 let comma = ref false in
7530 if !comma then pr ", ";
7535 | Some handle -> pr "%s" handle; comma := true
7540 pr "%s" (name_of_argt arg)
7542 (* For RBufferOut calls, add implicit &size parameter. *)
7544 match fst style with
7552 (* Generate the OCaml bindings interface. *)
7553 and generate_ocaml_mli () =
7554 generate_header OCamlStyle LGPLv2plus;
7557 (** For API documentation you should refer to the C API
7558 in the guestfs(3) manual page. The OCaml API uses almost
7559 exactly the same calls. *)
7562 (** A [guestfs_h] handle. *)
7564 exception Error of string
7565 (** This exception is raised when there is an error. *)
7567 exception Handle_closed of string
7568 (** This exception is raised if you use a {!Guestfs.t} handle
7569 after calling {!close} on it. The string is the name of
7572 val create : unit -> t
7573 (** Create a {!Guestfs.t} handle. *)
7575 val close : t -> unit
7576 (** Close the {!Guestfs.t} handle and free up all resources used
7579 Handles are closed by the garbage collector when they become
7580 unreferenced, but callers can call this in order to provide
7581 predictable cleanup. *)
7584 generate_ocaml_structure_decls ();
7588 fun (name, style, _, _, _, shortdesc, _) ->
7589 generate_ocaml_prototype name style;
7590 pr "(** %s *)\n" shortdesc;
7592 ) all_functions_sorted
7594 (* Generate the OCaml bindings implementation. *)
7595 and generate_ocaml_ml () =
7596 generate_header OCamlStyle LGPLv2plus;
7601 exception Error of string
7602 exception Handle_closed of string
7604 external create : unit -> t = \"ocaml_guestfs_create\"
7605 external close : t -> unit = \"ocaml_guestfs_close\"
7607 (* Give the exceptions names, so they can be raised from the C code. *)
7609 Callback.register_exception \"ocaml_guestfs_error\" (Error \"\");
7610 Callback.register_exception \"ocaml_guestfs_closed\" (Handle_closed \"\")
7614 generate_ocaml_structure_decls ();
7618 fun (name, style, _, _, _, shortdesc, _) ->
7619 generate_ocaml_prototype ~is_external:true name style;
7620 ) all_functions_sorted
7622 (* Generate the OCaml bindings C implementation. *)
7623 and generate_ocaml_c () =
7624 generate_header CStyle LGPLv2plus;
7631 #include <caml/config.h>
7632 #include <caml/alloc.h>
7633 #include <caml/callback.h>
7634 #include <caml/fail.h>
7635 #include <caml/memory.h>
7636 #include <caml/mlvalues.h>
7637 #include <caml/signals.h>
7639 #include <guestfs.h>
7641 #include \"guestfs_c.h\"
7643 /* Copy a hashtable of string pairs into an assoc-list. We return
7644 * the list in reverse order, but hashtables aren't supposed to be
7647 static CAMLprim value
7648 copy_table (char * const * argv)
7651 CAMLlocal5 (rv, pairv, kv, vv, cons);
7655 for (i = 0; argv[i] != NULL; i += 2) {
7656 kv = caml_copy_string (argv[i]);
7657 vv = caml_copy_string (argv[i+1]);
7658 pairv = caml_alloc (2, 0);
7659 Store_field (pairv, 0, kv);
7660 Store_field (pairv, 1, vv);
7661 cons = caml_alloc (2, 0);
7662 Store_field (cons, 1, rv);
7664 Store_field (cons, 0, pairv);
7672 (* Struct copy functions. *)
7674 let emit_ocaml_copy_list_function typ =
7675 pr "static CAMLprim value\n";
7676 pr "copy_%s_list (const struct guestfs_%s_list *%ss)\n" typ typ typ;
7678 pr " CAMLparam0 ();\n";
7679 pr " CAMLlocal2 (rv, v);\n";
7680 pr " unsigned int i;\n";
7682 pr " if (%ss->len == 0)\n" typ;
7683 pr " CAMLreturn (Atom (0));\n";
7685 pr " rv = caml_alloc (%ss->len, 0);\n" typ;
7686 pr " for (i = 0; i < %ss->len; ++i) {\n" typ;
7687 pr " v = copy_%s (&%ss->val[i]);\n" typ typ;
7688 pr " caml_modify (&Field (rv, i), v);\n";
7690 pr " CAMLreturn (rv);\n";
7698 let has_optpercent_col =
7699 List.exists (function (_, FOptPercent) -> true | _ -> false) cols in
7701 pr "static CAMLprim value\n";
7702 pr "copy_%s (const struct guestfs_%s *%s)\n" typ typ typ;
7704 pr " CAMLparam0 ();\n";
7705 if has_optpercent_col then
7706 pr " CAMLlocal3 (rv, v, v2);\n"
7708 pr " CAMLlocal2 (rv, v);\n";
7710 pr " rv = caml_alloc (%d, 0);\n" (List.length cols);
7715 pr " v = caml_copy_string (%s->%s);\n" typ name
7717 pr " v = caml_alloc_string (%s->%s_len);\n" typ name;
7718 pr " memcpy (String_val (v), %s->%s, %s->%s_len);\n"
7721 pr " v = caml_alloc_string (32);\n";
7722 pr " memcpy (String_val (v), %s->%s, 32);\n" typ name
7723 | name, (FBytes|FInt64|FUInt64) ->
7724 pr " v = caml_copy_int64 (%s->%s);\n" typ name
7725 | name, (FInt32|FUInt32) ->
7726 pr " v = caml_copy_int32 (%s->%s);\n" typ name
7727 | name, FOptPercent ->
7728 pr " if (%s->%s >= 0) { /* Some %s */\n" typ name name;
7729 pr " v2 = caml_copy_double (%s->%s);\n" typ name;
7730 pr " v = caml_alloc (1, 0);\n";
7731 pr " Store_field (v, 0, v2);\n";
7732 pr " } else /* None */\n";
7733 pr " v = Val_int (0);\n";
7735 pr " v = Val_int (%s->%s);\n" typ name
7737 pr " Store_field (rv, %d, v);\n" i
7739 pr " CAMLreturn (rv);\n";
7744 (* Emit a copy_TYPE_list function definition only if that function is used. *)
7747 | typ, (RStructListOnly | RStructAndList) ->
7748 (* generate the function for typ *)
7749 emit_ocaml_copy_list_function typ
7750 | typ, _ -> () (* empty *)
7751 ) (rstructs_used_by all_functions);
7755 fun (name, style, _, _, _, _, _) ->
7756 pr "/* Automatically generated wrapper for function\n";
7758 generate_ocaml_prototype name style;
7763 "gv" :: List.map (fun arg -> name_of_argt arg ^ "v") (snd style) in
7765 let needs_extra_vs =
7766 match fst style with RConstOptString _ -> true | _ -> false in
7768 pr "/* Emit prototype to appease gcc's -Wmissing-prototypes. */\n";
7769 pr "CAMLprim value ocaml_guestfs_%s (value %s" name (List.hd params);
7770 List.iter (pr ", value %s") (List.tl params); pr ");\n";
7773 pr "CAMLprim value\n";
7774 pr "ocaml_guestfs_%s (value %s" name (List.hd params);
7775 List.iter (pr ", value %s") (List.tl params);
7780 | [p1; p2; p3; p4; p5] ->
7781 pr " CAMLparam5 (%s);\n" (String.concat ", " params)
7782 | p1 :: p2 :: p3 :: p4 :: p5 :: rest ->
7783 pr " CAMLparam5 (%s);\n" (String.concat ", " [p1; p2; p3; p4; p5]);
7784 pr " CAMLxparam%d (%s);\n"
7785 (List.length rest) (String.concat ", " rest)
7787 pr " CAMLparam%d (%s);\n" (List.length ps) (String.concat ", " ps)
7789 if not needs_extra_vs then
7790 pr " CAMLlocal1 (rv);\n"
7792 pr " CAMLlocal3 (rv, v, v2);\n";
7795 pr " guestfs_h *g = Guestfs_val (gv);\n";
7796 pr " if (g == NULL)\n";
7797 pr " ocaml_guestfs_raise_closed (\"%s\");\n" name;
7803 | Device n | Dev_or_Path n
7807 pr " const char *%s = String_val (%sv);\n" n n
7809 pr " const char *%s =\n" n;
7810 pr " %sv != Val_int (0) ? String_val (Field (%sv, 0)) : NULL;\n"
7812 | StringList n | DeviceList n ->
7813 pr " char **%s = ocaml_guestfs_strings_val (g, %sv);\n" n n
7815 pr " int %s = Bool_val (%sv);\n" n n
7817 pr " int %s = Int_val (%sv);\n" n n
7819 pr " int64_t %s = Int64_val (%sv);\n" n n
7822 match fst style with
7823 | RErr -> pr " int r;\n"; "-1"
7824 | RInt _ -> pr " int r;\n"; "-1"
7825 | RInt64 _ -> pr " int64_t r;\n"; "-1"
7826 | RBool _ -> pr " int r;\n"; "-1"
7827 | RConstString _ | RConstOptString _ ->
7828 pr " const char *r;\n"; "NULL"
7829 | RString _ -> pr " char *r;\n"; "NULL"
7834 | RStruct (_, typ) ->
7835 pr " struct guestfs_%s *r;\n" typ; "NULL"
7836 | RStructList (_, typ) ->
7837 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
7844 pr " size_t size;\n";
7848 pr " caml_enter_blocking_section ();\n";
7849 pr " r = guestfs_%s " name;
7850 generate_c_call_args ~handle:"g" style;
7852 pr " caml_leave_blocking_section ();\n";
7856 | StringList n | DeviceList n ->
7857 pr " ocaml_guestfs_free_strings (%s);\n" n;
7858 | Pathname _ | Device _ | Dev_or_Path _ | String _ | OptString _
7859 | Bool _ | Int _ | Int64 _
7860 | FileIn _ | FileOut _ -> ()
7863 pr " if (r == %s)\n" error_code;
7864 pr " ocaml_guestfs_raise_error (g, \"%s\");\n" name;
7867 (match fst style with
7868 | RErr -> pr " rv = Val_unit;\n"
7869 | RInt _ -> pr " rv = Val_int (r);\n"
7871 pr " rv = caml_copy_int64 (r);\n"
7872 | RBool _ -> pr " rv = Val_bool (r);\n"
7874 pr " rv = caml_copy_string (r);\n"
7875 | RConstOptString _ ->
7876 pr " if (r) { /* Some string */\n";
7877 pr " v = caml_alloc (1, 0);\n";
7878 pr " v2 = caml_copy_string (r);\n";
7879 pr " Store_field (v, 0, v2);\n";
7880 pr " } else /* None */\n";
7881 pr " v = Val_int (0);\n";
7883 pr " rv = caml_copy_string (r);\n";
7886 pr " rv = caml_copy_string_array ((const char **) r);\n";
7887 pr " for (i = 0; r[i] != NULL; ++i) free (r[i]);\n";
7889 | RStruct (_, typ) ->
7890 pr " rv = copy_%s (r);\n" typ;
7891 pr " guestfs_free_%s (r);\n" typ;
7892 | RStructList (_, typ) ->
7893 pr " rv = copy_%s_list (r);\n" typ;
7894 pr " guestfs_free_%s_list (r);\n" typ;
7896 pr " rv = copy_table (r);\n";
7897 pr " for (i = 0; r[i] != NULL; ++i) free (r[i]);\n";
7900 pr " rv = caml_alloc_string (size);\n";
7901 pr " memcpy (String_val (rv), r, size);\n";
7904 pr " CAMLreturn (rv);\n";
7908 if List.length params > 5 then (
7909 pr "/* Emit prototype to appease gcc's -Wmissing-prototypes. */\n";
7910 pr "CAMLprim value ";
7911 pr "ocaml_guestfs_%s_byte (value *argv, int argn);\n" name;
7912 pr "CAMLprim value\n";
7913 pr "ocaml_guestfs_%s_byte (value *argv, int argn)\n" name;
7915 pr " return ocaml_guestfs_%s (argv[0]" name;
7916 iteri (fun i _ -> pr ", argv[%d]" i) (List.tl params);
7921 ) all_functions_sorted
7923 and generate_ocaml_structure_decls () =
7926 pr "type %s = {\n" typ;
7929 | name, FString -> pr " %s : string;\n" name
7930 | name, FBuffer -> pr " %s : string;\n" name
7931 | name, FUUID -> pr " %s : string;\n" name
7932 | name, (FBytes|FInt64|FUInt64) -> pr " %s : int64;\n" name
7933 | name, (FInt32|FUInt32) -> pr " %s : int32;\n" name
7934 | name, FChar -> pr " %s : char;\n" name
7935 | name, FOptPercent -> pr " %s : float option;\n" name
7941 and generate_ocaml_prototype ?(is_external = false) name style =
7942 if is_external then pr "external " else pr "val ";
7943 pr "%s : t -> " name;
7946 | Pathname _ | Device _ | Dev_or_Path _ | String _ | FileIn _ | FileOut _ -> pr "string -> "
7947 | OptString _ -> pr "string option -> "
7948 | StringList _ | DeviceList _ -> pr "string array -> "
7949 | Bool _ -> pr "bool -> "
7950 | Int _ -> pr "int -> "
7951 | Int64 _ -> pr "int64 -> "
7953 (match fst style with
7954 | RErr -> pr "unit" (* all errors are turned into exceptions *)
7955 | RInt _ -> pr "int"
7956 | RInt64 _ -> pr "int64"
7957 | RBool _ -> pr "bool"
7958 | RConstString _ -> pr "string"
7959 | RConstOptString _ -> pr "string option"
7960 | RString _ | RBufferOut _ -> pr "string"
7961 | RStringList _ -> pr "string array"
7962 | RStruct (_, typ) -> pr "%s" typ
7963 | RStructList (_, typ) -> pr "%s array" typ
7964 | RHashtable _ -> pr "(string * string) list"
7966 if is_external then (
7968 if List.length (snd style) + 1 > 5 then
7969 pr "\"ocaml_guestfs_%s_byte\" " name;
7970 pr "\"ocaml_guestfs_%s\"" name
7974 (* Generate Perl xs code, a sort of crazy variation of C with macros. *)
7975 and generate_perl_xs () =
7976 generate_header CStyle LGPLv2plus;
7979 #include \"EXTERN.h\"
7983 #include <guestfs.h>
7986 #define PRId64 \"lld\"
7990 my_newSVll(long long val) {
7991 #ifdef USE_64_BIT_ALL
7992 return newSViv(val);
7996 len = snprintf(buf, 100, \"%%\" PRId64, val);
7997 return newSVpv(buf, len);
8002 #define PRIu64 \"llu\"
8006 my_newSVull(unsigned long long val) {
8007 #ifdef USE_64_BIT_ALL
8008 return newSVuv(val);
8012 len = snprintf(buf, 100, \"%%\" PRIu64, val);
8013 return newSVpv(buf, len);
8017 /* http://www.perlmonks.org/?node_id=680842 */
8019 XS_unpack_charPtrPtr (SV *arg) {
8024 if (!arg || !SvOK (arg) || !SvROK (arg) || SvTYPE (SvRV (arg)) != SVt_PVAV)
8025 croak (\"array reference expected\");
8027 av = (AV *)SvRV (arg);
8028 ret = malloc ((av_len (av) + 1 + 1) * sizeof (char *));
8030 croak (\"malloc failed\");
8032 for (i = 0; i <= av_len (av); i++) {
8033 SV **elem = av_fetch (av, i, 0);
8035 if (!elem || !*elem)
8036 croak (\"missing element in list\");
8038 ret[i] = SvPV_nolen (*elem);
8046 MODULE = Sys::Guestfs PACKAGE = Sys::Guestfs
8053 RETVAL = guestfs_create ();
8055 croak (\"could not create guestfs handle\");
8056 guestfs_set_error_handler (RETVAL, NULL, NULL);
8069 fun (name, style, _, _, _, _, _) ->
8070 (match fst style with
8071 | RErr -> pr "void\n"
8072 | RInt _ -> pr "SV *\n"
8073 | RInt64 _ -> pr "SV *\n"
8074 | RBool _ -> pr "SV *\n"
8075 | RConstString _ -> pr "SV *\n"
8076 | RConstOptString _ -> pr "SV *\n"
8077 | RString _ -> pr "SV *\n"
8078 | RBufferOut _ -> pr "SV *\n"
8080 | RStruct _ | RStructList _
8082 pr "void\n" (* all lists returned implictly on the stack *)
8084 (* Call and arguments. *)
8086 generate_c_call_args ~handle:"g" ~decl:true style;
8088 pr " guestfs_h *g;\n";
8092 | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n ->
8095 (* http://www.perlmonks.org/?node_id=554277
8096 * Note that the implicit handle argument means we have
8097 * to add 1 to the ST(x) operator.
8099 pr " char *%s = SvOK(ST(%d)) ? SvPV_nolen(ST(%d)) : NULL;\n" n (i+1) (i+1)
8100 | StringList n | DeviceList n -> pr " char **%s;\n" n
8101 | Bool n -> pr " int %s;\n" n
8102 | Int n -> pr " int %s;\n" n
8103 | Int64 n -> pr " int64_t %s;\n" n
8106 let do_cleanups () =
8109 | Pathname _ | Device _ | Dev_or_Path _ | String _ | OptString _
8110 | Bool _ | Int _ | Int64 _
8111 | FileIn _ | FileOut _ -> ()
8112 | StringList n | DeviceList n -> pr " free (%s);\n" n
8117 (match fst style with
8122 pr " r = guestfs_%s " name;
8123 generate_c_call_args ~handle:"g" style;
8126 pr " if (r == -1)\n";
8127 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8133 pr " %s = guestfs_%s " n name;
8134 generate_c_call_args ~handle:"g" style;
8137 pr " if (%s == -1)\n" n;
8138 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8139 pr " RETVAL = newSViv (%s);\n" n;
8144 pr " int64_t %s;\n" n;
8146 pr " %s = guestfs_%s " n name;
8147 generate_c_call_args ~handle:"g" style;
8150 pr " if (%s == -1)\n" n;
8151 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8152 pr " RETVAL = my_newSVll (%s);\n" n;
8157 pr " const char *%s;\n" n;
8159 pr " %s = guestfs_%s " n name;
8160 generate_c_call_args ~handle:"g" style;
8163 pr " if (%s == NULL)\n" n;
8164 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8165 pr " RETVAL = newSVpv (%s, 0);\n" n;
8168 | RConstOptString n ->
8170 pr " const char *%s;\n" n;
8172 pr " %s = guestfs_%s " n name;
8173 generate_c_call_args ~handle:"g" style;
8176 pr " if (%s == NULL)\n" n;
8177 pr " RETVAL = &PL_sv_undef;\n";
8179 pr " RETVAL = newSVpv (%s, 0);\n" n;
8184 pr " char *%s;\n" n;
8186 pr " %s = guestfs_%s " n name;
8187 generate_c_call_args ~handle:"g" style;
8190 pr " if (%s == NULL)\n" n;
8191 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8192 pr " RETVAL = newSVpv (%s, 0);\n" n;
8193 pr " free (%s);\n" n;
8196 | RStringList n | RHashtable n ->
8198 pr " char **%s;\n" n;
8201 pr " %s = guestfs_%s " n name;
8202 generate_c_call_args ~handle:"g" style;
8205 pr " if (%s == NULL)\n" n;
8206 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8207 pr " for (n = 0; %s[n] != NULL; ++n) /**/;\n" n;
8208 pr " EXTEND (SP, n);\n";
8209 pr " for (i = 0; i < n; ++i) {\n";
8210 pr " PUSHs (sv_2mortal (newSVpv (%s[i], 0)));\n" n;
8211 pr " free (%s[i]);\n" n;
8213 pr " free (%s);\n" n;
8214 | RStruct (n, typ) ->
8215 let cols = cols_of_struct typ in
8216 generate_perl_struct_code typ cols name style n do_cleanups
8217 | RStructList (n, typ) ->
8218 let cols = cols_of_struct typ in
8219 generate_perl_struct_list_code typ cols name style n do_cleanups
8222 pr " char *%s;\n" n;
8223 pr " size_t size;\n";
8225 pr " %s = guestfs_%s " n name;
8226 generate_c_call_args ~handle:"g" style;
8229 pr " if (%s == NULL)\n" n;
8230 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8231 pr " RETVAL = newSVpv (%s, size);\n" n;
8232 pr " free (%s);\n" n;
8240 and generate_perl_struct_list_code typ cols name style n do_cleanups =
8242 pr " struct guestfs_%s_list *%s;\n" typ n;
8246 pr " %s = guestfs_%s " n name;
8247 generate_c_call_args ~handle:"g" style;
8250 pr " if (%s == NULL)\n" n;
8251 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8252 pr " EXTEND (SP, %s->len);\n" n;
8253 pr " for (i = 0; i < %s->len; ++i) {\n" n;
8254 pr " hv = newHV ();\n";
8258 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 0), 0);\n"
8259 name (String.length name) n name
8261 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 32), 0);\n"
8262 name (String.length name) n name
8264 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, %s->val[i].%s_len), 0);\n"
8265 name (String.length name) n name n name
8266 | name, (FBytes|FUInt64) ->
8267 pr " (void) hv_store (hv, \"%s\", %d, my_newSVull (%s->val[i].%s), 0);\n"
8268 name (String.length name) n name
8270 pr " (void) hv_store (hv, \"%s\", %d, my_newSVll (%s->val[i].%s), 0);\n"
8271 name (String.length name) n name
8272 | name, (FInt32|FUInt32) ->
8273 pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
8274 name (String.length name) n name
8276 pr " (void) hv_store (hv, \"%s\", %d, newSVpv (&%s->val[i].%s, 1), 0);\n"
8277 name (String.length name) n name
8278 | name, FOptPercent ->
8279 pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
8280 name (String.length name) n name
8282 pr " PUSHs (sv_2mortal (newRV ((SV *) hv)));\n";
8284 pr " guestfs_free_%s_list (%s);\n" typ n
8286 and generate_perl_struct_code typ cols name style n do_cleanups =
8288 pr " struct guestfs_%s *%s;\n" typ n;
8290 pr " %s = guestfs_%s " n name;
8291 generate_c_call_args ~handle:"g" style;
8294 pr " if (%s == NULL)\n" n;
8295 pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
8296 pr " EXTEND (SP, 2 * %d);\n" (List.length cols);
8298 fun ((name, _) as col) ->
8299 pr " PUSHs (sv_2mortal (newSVpv (\"%s\", 0)));\n" name;
8303 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 0)));\n"
8306 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, %s->%s_len)));\n"
8309 pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 32)));\n"
8311 | name, (FBytes|FUInt64) ->
8312 pr " PUSHs (sv_2mortal (my_newSVull (%s->%s)));\n"
8315 pr " PUSHs (sv_2mortal (my_newSVll (%s->%s)));\n"
8317 | name, (FInt32|FUInt32) ->
8318 pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
8321 pr " PUSHs (sv_2mortal (newSVpv (&%s->%s, 1)));\n"
8323 | name, FOptPercent ->
8324 pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
8327 pr " free (%s);\n" n
8329 (* Generate Sys/Guestfs.pm. *)
8330 and generate_perl_pm () =
8331 generate_header HashStyle LGPLv2plus;
8338 Sys::Guestfs - Perl bindings for libguestfs
8344 my $h = Sys::Guestfs->new ();
8345 $h->add_drive ('guest.img');
8347 $h->mount ('/dev/sda1', '/');
8348 $h->touch ('/hello');
8353 The C<Sys::Guestfs> module provides a Perl XS binding to the
8354 libguestfs API for examining and modifying virtual machine
8357 Amongst the things this is good for: making batch configuration
8358 changes to guests, getting disk used/free statistics (see also:
8359 virt-df), migrating between virtualization systems (see also:
8360 virt-p2v), performing partial backups, performing partial guest
8361 clones, cloning guests and changing registry/UUID/hostname info, and
8364 Libguestfs uses Linux kernel and qemu code, and can access any type of
8365 guest filesystem that Linux and qemu can, including but not limited
8366 to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
8367 schemes, qcow, qcow2, vmdk.
8369 Libguestfs provides ways to enumerate guest storage (eg. partitions,
8370 LVs, what filesystem is in each LV, etc.). It can also run commands
8371 in the context of the guest. Also you can access filesystems over FTP.
8373 See also L<Sys::Guestfs::Lib(3)> for a set of useful library
8374 functions for using libguestfs from Perl, including integration
8379 All errors turn into calls to C<croak> (see L<Carp(3)>).
8387 package Sys::Guestfs;
8393 XSLoader::load ('Sys::Guestfs');
8395 =item $h = Sys::Guestfs->new ();
8397 Create a new guestfs handle.
8403 my $class = ref ($proto) || $proto;
8405 my $self = Sys::Guestfs::_create ();
8406 bless $self, $class;
8412 (* Actions. We only need to print documentation for these as
8413 * they are pulled in from the XS code automatically.
8416 fun (name, style, _, flags, _, _, longdesc) ->
8417 if not (List.mem NotInDocs flags) then (
8418 let longdesc = replace_str longdesc "C<guestfs_" "C<$h-E<gt>" in
8420 generate_perl_prototype name style;
8422 pr "%s\n\n" longdesc;
8423 if List.mem ProtocolLimitWarning flags then
8424 pr "%s\n\n" protocol_limit_warning;
8425 if List.mem DangerWillRobinson flags then
8426 pr "%s\n\n" danger_will_robinson;
8427 match deprecation_notice flags with
8429 | Some txt -> pr "%s\n\n" txt
8431 ) all_functions_sorted;
8443 Copyright (C) %s Red Hat Inc.
8447 Please see the file COPYING.LIB for the full license.
8453 L<http://libguestfs.org>,
8454 L<Sys::Guestfs::Lib(3)>.
8459 and generate_perl_prototype name style =
8460 (match fst style with
8468 | RBufferOut n -> pr "$%s = " n
8470 | RHashtable n -> pr "%%%s = " n
8472 | RStructList (n,_) -> pr "@%s = " n
8475 let comma = ref false in
8478 if !comma then pr ", ";
8481 | Pathname n | Device n | Dev_or_Path n | String n
8482 | OptString n | Bool n | Int n | Int64 n | FileIn n | FileOut n ->
8484 | StringList n | DeviceList n ->
8489 (* Generate Python C module. *)
8490 and generate_python_c () =
8491 generate_header CStyle LGPLv2plus;
8500 #include \"guestfs.h\"
8508 get_handle (PyObject *obj)
8511 assert (obj != Py_None);
8512 return ((Pyguestfs_Object *) obj)->g;
8516 put_handle (guestfs_h *g)
8520 PyCObject_FromVoidPtrAndDesc ((void *) g, (char *) \"guestfs_h\", NULL);
8523 /* This list should be freed (but not the strings) after use. */
8525 get_string_list (PyObject *obj)
8532 if (!PyList_Check (obj)) {
8533 PyErr_SetString (PyExc_RuntimeError, \"expecting a list parameter\");
8537 len = PyList_Size (obj);
8538 r = malloc (sizeof (char *) * (len+1));
8540 PyErr_SetString (PyExc_RuntimeError, \"get_string_list: out of memory\");
8544 for (i = 0; i < len; ++i)
8545 r[i] = PyString_AsString (PyList_GetItem (obj, i));
8552 put_string_list (char * const * const argv)
8557 for (argc = 0; argv[argc] != NULL; ++argc)
8560 list = PyList_New (argc);
8561 for (i = 0; i < argc; ++i)
8562 PyList_SetItem (list, i, PyString_FromString (argv[i]));
8568 put_table (char * const * const argv)
8570 PyObject *list, *item;
8573 for (argc = 0; argv[argc] != NULL; ++argc)
8576 list = PyList_New (argc >> 1);
8577 for (i = 0; i < argc; i += 2) {
8578 item = PyTuple_New (2);
8579 PyTuple_SetItem (item, 0, PyString_FromString (argv[i]));
8580 PyTuple_SetItem (item, 1, PyString_FromString (argv[i+1]));
8581 PyList_SetItem (list, i >> 1, item);
8588 free_strings (char **argv)
8592 for (argc = 0; argv[argc] != NULL; ++argc)
8598 py_guestfs_create (PyObject *self, PyObject *args)
8602 g = guestfs_create ();
8604 PyErr_SetString (PyExc_RuntimeError,
8605 \"guestfs.create: failed to allocate handle\");
8608 guestfs_set_error_handler (g, NULL, NULL);
8609 return put_handle (g);
8613 py_guestfs_close (PyObject *self, PyObject *args)
8618 if (!PyArg_ParseTuple (args, (char *) \"O:guestfs_close\", &py_g))
8620 g = get_handle (py_g);
8624 Py_INCREF (Py_None);
8630 let emit_put_list_function typ =
8631 pr "static PyObject *\n";
8632 pr "put_%s_list (struct guestfs_%s_list *%ss)\n" typ typ typ;
8634 pr " PyObject *list;\n";
8637 pr " list = PyList_New (%ss->len);\n" typ;
8638 pr " for (i = 0; i < %ss->len; ++i)\n" typ;
8639 pr " PyList_SetItem (list, i, put_%s (&%ss->val[i]));\n" typ typ;
8640 pr " return list;\n";
8645 (* Structures, turned into Python dictionaries. *)
8648 pr "static PyObject *\n";
8649 pr "put_%s (struct guestfs_%s *%s)\n" typ typ typ;
8651 pr " PyObject *dict;\n";
8653 pr " dict = PyDict_New ();\n";
8657 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8658 pr " PyString_FromString (%s->%s));\n"
8661 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8662 pr " PyString_FromStringAndSize (%s->%s, %s->%s_len));\n"
8665 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8666 pr " PyString_FromStringAndSize (%s->%s, 32));\n"
8668 | name, (FBytes|FUInt64) ->
8669 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8670 pr " PyLong_FromUnsignedLongLong (%s->%s));\n"
8673 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8674 pr " PyLong_FromLongLong (%s->%s));\n"
8677 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8678 pr " PyLong_FromUnsignedLong (%s->%s));\n"
8681 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8682 pr " PyLong_FromLong (%s->%s));\n"
8684 | name, FOptPercent ->
8685 pr " if (%s->%s >= 0)\n" typ name;
8686 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8687 pr " PyFloat_FromDouble ((double) %s->%s));\n"
8690 pr " Py_INCREF (Py_None);\n";
8691 pr " PyDict_SetItemString (dict, \"%s\", Py_None);\n" name;
8694 pr " PyDict_SetItemString (dict, \"%s\",\n" name;
8695 pr " PyString_FromStringAndSize (&dirent->%s, 1));\n" name
8697 pr " return dict;\n";
8703 (* Emit a put_TYPE_list function definition only if that function is used. *)
8706 | typ, (RStructListOnly | RStructAndList) ->
8707 (* generate the function for typ *)
8708 emit_put_list_function typ
8709 | typ, _ -> () (* empty *)
8710 ) (rstructs_used_by all_functions);
8712 (* Python wrapper functions. *)
8714 fun (name, style, _, _, _, _, _) ->
8715 pr "static PyObject *\n";
8716 pr "py_guestfs_%s (PyObject *self, PyObject *args)\n" name;
8719 pr " PyObject *py_g;\n";
8720 pr " guestfs_h *g;\n";
8721 pr " PyObject *py_r;\n";
8724 match fst style with
8725 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
8726 | RInt64 _ -> pr " int64_t r;\n"; "-1"
8727 | RConstString _ | RConstOptString _ ->
8728 pr " const char *r;\n"; "NULL"
8729 | RString _ -> pr " char *r;\n"; "NULL"
8730 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
8731 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
8732 | RStructList (_, typ) ->
8733 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
8736 pr " size_t size;\n";
8741 | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n ->
8742 pr " const char *%s;\n" n
8743 | OptString n -> pr " const char *%s;\n" n
8744 | StringList n | DeviceList n ->
8745 pr " PyObject *py_%s;\n" n;
8746 pr " char **%s;\n" n
8747 | Bool n -> pr " int %s;\n" n
8748 | Int n -> pr " int %s;\n" n
8749 | Int64 n -> pr " long long %s;\n" n
8754 (* Convert the parameters. *)
8755 pr " if (!PyArg_ParseTuple (args, (char *) \"O";
8758 | Pathname _ | Device _ | Dev_or_Path _ | String _ | FileIn _ | FileOut _ -> pr "s"
8759 | OptString _ -> pr "z"
8760 | StringList _ | DeviceList _ -> pr "O"
8761 | Bool _ -> pr "i" (* XXX Python has booleans? *)
8763 | Int64 _ -> pr "L" (* XXX Whoever thought it was a good idea to
8764 * emulate C's int/long/long long in Python?
8767 pr ":guestfs_%s\",\n" name;
8771 | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n -> pr ", &%s" n
8772 | OptString n -> pr ", &%s" n
8773 | StringList n | DeviceList n -> pr ", &py_%s" n
8774 | Bool n -> pr ", &%s" n
8775 | Int n -> pr ", &%s" n
8776 | Int64 n -> pr ", &%s" n
8780 pr " return NULL;\n";
8782 pr " g = get_handle (py_g);\n";
8785 | Pathname _ | Device _ | Dev_or_Path _ | String _
8786 | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _ -> ()
8787 | StringList n | DeviceList n ->
8788 pr " %s = get_string_list (py_%s);\n" n n;
8789 pr " if (!%s) return NULL;\n" n
8794 pr " r = guestfs_%s " name;
8795 generate_c_call_args ~handle:"g" style;
8800 | Pathname _ | Device _ | Dev_or_Path _ | String _
8801 | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _ -> ()
8802 | StringList n | DeviceList n ->
8803 pr " free (%s);\n" n
8806 pr " if (r == %s) {\n" error_code;
8807 pr " PyErr_SetString (PyExc_RuntimeError, guestfs_last_error (g));\n";
8808 pr " return NULL;\n";
8812 (match fst style with
8814 pr " Py_INCREF (Py_None);\n";
8815 pr " py_r = Py_None;\n"
8817 | RBool _ -> pr " py_r = PyInt_FromLong ((long) r);\n"
8818 | RInt64 _ -> pr " py_r = PyLong_FromLongLong (r);\n"
8819 | RConstString _ -> pr " py_r = PyString_FromString (r);\n"
8820 | RConstOptString _ ->
8822 pr " py_r = PyString_FromString (r);\n";
8824 pr " Py_INCREF (Py_None);\n";
8825 pr " py_r = Py_None;\n";
8828 pr " py_r = PyString_FromString (r);\n";
8831 pr " py_r = put_string_list (r);\n";
8832 pr " free_strings (r);\n"
8833 | RStruct (_, typ) ->
8834 pr " py_r = put_%s (r);\n" typ;
8835 pr " guestfs_free_%s (r);\n" typ
8836 | RStructList (_, typ) ->
8837 pr " py_r = put_%s_list (r);\n" typ;
8838 pr " guestfs_free_%s_list (r);\n" typ
8840 pr " py_r = put_table (r);\n";
8841 pr " free_strings (r);\n"
8843 pr " py_r = PyString_FromStringAndSize (r, size);\n";
8847 pr " return py_r;\n";
8852 (* Table of functions. *)
8853 pr "static PyMethodDef methods[] = {\n";
8854 pr " { (char *) \"create\", py_guestfs_create, METH_VARARGS, NULL },\n";
8855 pr " { (char *) \"close\", py_guestfs_close, METH_VARARGS, NULL },\n";
8857 fun (name, _, _, _, _, _, _) ->
8858 pr " { (char *) \"%s\", py_guestfs_%s, METH_VARARGS, NULL },\n"
8861 pr " { NULL, NULL, 0, NULL }\n";
8865 (* Init function. *)
8868 initlibguestfsmod (void)
8870 static int initialized = 0;
8872 if (initialized) return;
8873 Py_InitModule ((char *) \"libguestfsmod\", methods);
8878 (* Generate Python module. *)
8879 and generate_python_py () =
8880 generate_header HashStyle LGPLv2plus;
8883 u\"\"\"Python bindings for libguestfs
8886 g = guestfs.GuestFS ()
8887 g.add_drive (\"guest.img\")
8889 parts = g.list_partitions ()
8891 The guestfs module provides a Python binding to the libguestfs API
8892 for examining and modifying virtual machine disk images.
8894 Amongst the things this is good for: making batch configuration
8895 changes to guests, getting disk used/free statistics (see also:
8896 virt-df), migrating between virtualization systems (see also:
8897 virt-p2v), performing partial backups, performing partial guest
8898 clones, cloning guests and changing registry/UUID/hostname info, and
8901 Libguestfs uses Linux kernel and qemu code, and can access any type of
8902 guest filesystem that Linux and qemu can, including but not limited
8903 to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
8904 schemes, qcow, qcow2, vmdk.
8906 Libguestfs provides ways to enumerate guest storage (eg. partitions,
8907 LVs, what filesystem is in each LV, etc.). It can also run commands
8908 in the context of the guest. Also you can access filesystems over FTP.
8910 Errors which happen while using the API are turned into Python
8911 RuntimeError exceptions.
8913 To create a guestfs handle you usually have to perform the following
8916 # Create the handle, call add_drive at least once, and possibly
8917 # several times if the guest has multiple block devices:
8918 g = guestfs.GuestFS ()
8919 g.add_drive (\"guest.img\")
8921 # Launch the qemu subprocess and wait for it to become ready:
8924 # Now you can issue commands, for example:
8929 import libguestfsmod
8932 \"\"\"Instances of this class are libguestfs API handles.\"\"\"
8934 def __init__ (self):
8935 \"\"\"Create a new libguestfs handle.\"\"\"
8936 self._o = libguestfsmod.create ()
8939 libguestfsmod.close (self._o)
8944 fun (name, style, _, flags, _, _, longdesc) ->
8946 generate_py_call_args ~handle:"self" (snd style);
8949 if not (List.mem NotInDocs flags) then (
8950 let doc = replace_str longdesc "C<guestfs_" "C<g." in
8952 match fst style with
8953 | RErr | RInt _ | RInt64 _ | RBool _
8954 | RConstOptString _ | RConstString _
8955 | RString _ | RBufferOut _ -> doc
8957 doc ^ "\n\nThis function returns a list of strings."
8958 | RStruct (_, typ) ->
8959 doc ^ sprintf "\n\nThis function returns a dictionary, with keys matching the various fields in the guestfs_%s structure." typ
8960 | RStructList (_, typ) ->
8961 doc ^ sprintf "\n\nThis function returns a list of %ss. Each %s is represented as a dictionary." typ typ
8963 doc ^ "\n\nThis function returns a dictionary." in
8965 if List.mem ProtocolLimitWarning flags then
8966 doc ^ "\n\n" ^ protocol_limit_warning
8969 if List.mem DangerWillRobinson flags then
8970 doc ^ "\n\n" ^ danger_will_robinson
8973 match deprecation_notice flags with
8975 | Some txt -> doc ^ "\n\n" ^ txt in
8976 let doc = pod2text ~width:60 name doc in
8977 let doc = List.map (fun line -> replace_str line "\\" "\\\\") doc in
8978 let doc = String.concat "\n " doc in
8979 pr " u\"\"\"%s\"\"\"\n" doc;
8981 pr " return libguestfsmod.%s " name;
8982 generate_py_call_args ~handle:"self._o" (snd style);
8987 (* Generate Python call arguments, eg "(handle, foo, bar)" *)
8988 and generate_py_call_args ~handle args =
8990 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
8993 (* Useful if you need the longdesc POD text as plain text. Returns a
8996 * Because this is very slow (the slowest part of autogeneration),
8997 * we memoize the results.
8999 and pod2text ~width name longdesc =
9000 let key = width, name, longdesc in
9001 try Hashtbl.find pod2text_memo key
9003 let filename, chan = Filename.open_temp_file "gen" ".tmp" in
9004 fprintf chan "=head1 %s\n\n%s\n" name longdesc;
9006 let cmd = sprintf "pod2text -w %d %s" width (Filename.quote filename) in
9007 let chan = open_process_in cmd in
9008 let lines = ref [] in
9010 let line = input_line chan in
9011 if i = 1 then (* discard the first line of output *)
9014 let line = triml line in
9015 lines := line :: !lines;
9018 let lines = try loop 1 with End_of_file -> List.rev !lines in
9020 (match close_process_in chan with
9023 failwithf "pod2text: process exited with non-zero status (%d)" i
9024 | WSIGNALED i | WSTOPPED i ->
9025 failwithf "pod2text: process signalled or stopped by signal %d" i
9027 Hashtbl.add pod2text_memo key lines;
9028 pod2text_memo_updated ();
9031 (* Generate ruby bindings. *)
9032 and generate_ruby_c () =
9033 generate_header CStyle LGPLv2plus;
9041 #include \"guestfs.h\"
9043 #include \"extconf.h\"
9045 /* For Ruby < 1.9 */
9047 #define RARRAY_LEN(r) (RARRAY((r))->len)
9050 static VALUE m_guestfs; /* guestfs module */
9051 static VALUE c_guestfs; /* guestfs_h handle */
9052 static VALUE e_Error; /* used for all errors */
9054 static void ruby_guestfs_free (void *p)
9057 guestfs_close ((guestfs_h *) p);
9060 static VALUE ruby_guestfs_create (VALUE m)
9064 g = guestfs_create ();
9066 rb_raise (e_Error, \"failed to create guestfs handle\");
9068 /* Don't print error messages to stderr by default. */
9069 guestfs_set_error_handler (g, NULL, NULL);
9071 /* Wrap it, and make sure the close function is called when the
9074 return Data_Wrap_Struct (c_guestfs, NULL, ruby_guestfs_free, g);
9077 static VALUE ruby_guestfs_close (VALUE gv)
9080 Data_Get_Struct (gv, guestfs_h, g);
9082 ruby_guestfs_free (g);
9083 DATA_PTR (gv) = NULL;
9091 fun (name, style, _, _, _, _, _) ->
9092 pr "static VALUE ruby_guestfs_%s (VALUE gv" name;
9093 List.iter (fun arg -> pr ", VALUE %sv" (name_of_argt arg)) (snd style);
9096 pr " guestfs_h *g;\n";
9097 pr " Data_Get_Struct (gv, guestfs_h, g);\n";
9099 pr " rb_raise (rb_eArgError, \"%%s: used handle after closing it\", \"%s\");\n"
9105 | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n ->
9106 pr " Check_Type (%sv, T_STRING);\n" n;
9107 pr " const char *%s = StringValueCStr (%sv);\n" n n;
9109 pr " rb_raise (rb_eTypeError, \"expected string for parameter %%s of %%s\",\n";
9110 pr " \"%s\", \"%s\");\n" n name
9112 pr " const char *%s = !NIL_P (%sv) ? StringValueCStr (%sv) : NULL;\n" n n n
9113 | StringList n | DeviceList n ->
9114 pr " char **%s;\n" n;
9115 pr " Check_Type (%sv, T_ARRAY);\n" n;
9117 pr " int i, len;\n";
9118 pr " len = RARRAY_LEN (%sv);\n" n;
9119 pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (len+1));\n"
9121 pr " for (i = 0; i < len; ++i) {\n";
9122 pr " VALUE v = rb_ary_entry (%sv, i);\n" n;
9123 pr " %s[i] = StringValueCStr (v);\n" n;
9125 pr " %s[len] = NULL;\n" n;
9128 pr " int %s = RTEST (%sv);\n" n n
9130 pr " int %s = NUM2INT (%sv);\n" n n
9132 pr " long long %s = NUM2LL (%sv);\n" n n
9137 match fst style with
9138 | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
9139 | RInt64 _ -> pr " int64_t r;\n"; "-1"
9140 | RConstString _ | RConstOptString _ ->
9141 pr " const char *r;\n"; "NULL"
9142 | RString _ -> pr " char *r;\n"; "NULL"
9143 | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
9144 | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
9145 | RStructList (_, typ) ->
9146 pr " struct guestfs_%s_list *r;\n" typ; "NULL"
9149 pr " size_t size;\n";
9153 pr " r = guestfs_%s " name;
9154 generate_c_call_args ~handle:"g" style;
9159 | Pathname _ | Device _ | Dev_or_Path _ | String _
9160 | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _ -> ()
9161 | StringList n | DeviceList n ->
9162 pr " free (%s);\n" n
9165 pr " if (r == %s)\n" error_code;
9166 pr " rb_raise (e_Error, \"%%s\", guestfs_last_error (g));\n";
9169 (match fst style with
9171 pr " return Qnil;\n"
9172 | RInt _ | RBool _ ->
9173 pr " return INT2NUM (r);\n"
9175 pr " return ULL2NUM (r);\n"
9177 pr " return rb_str_new2 (r);\n";
9178 | RConstOptString _ ->
9180 pr " return rb_str_new2 (r);\n";
9182 pr " return Qnil;\n";
9184 pr " VALUE rv = rb_str_new2 (r);\n";
9188 pr " int i, len = 0;\n";
9189 pr " for (i = 0; r[i] != NULL; ++i) len++;\n";
9190 pr " VALUE rv = rb_ary_new2 (len);\n";
9191 pr " for (i = 0; r[i] != NULL; ++i) {\n";
9192 pr " rb_ary_push (rv, rb_str_new2 (r[i]));\n";
9193 pr " free (r[i]);\n";
9197 | RStruct (_, typ) ->
9198 let cols = cols_of_struct typ in
9199 generate_ruby_struct_code typ cols
9200 | RStructList (_, typ) ->
9201 let cols = cols_of_struct typ in
9202 generate_ruby_struct_list_code typ cols
9204 pr " VALUE rv = rb_hash_new ();\n";
9206 pr " for (i = 0; r[i] != NULL; i+=2) {\n";
9207 pr " rb_hash_aset (rv, rb_str_new2 (r[i]), rb_str_new2 (r[i+1]));\n";
9208 pr " free (r[i]);\n";
9209 pr " free (r[i+1]);\n";
9214 pr " VALUE rv = rb_str_new (r, size);\n";
9224 /* Initialize the module. */
9225 void Init__guestfs ()
9227 m_guestfs = rb_define_module (\"Guestfs\");
9228 c_guestfs = rb_define_class_under (m_guestfs, \"Guestfs\", rb_cObject);
9229 e_Error = rb_define_class_under (m_guestfs, \"Error\", rb_eStandardError);
9231 rb_define_module_function (m_guestfs, \"create\", ruby_guestfs_create, 0);
9232 rb_define_method (c_guestfs, \"close\", ruby_guestfs_close, 0);
9235 (* Define the rest of the methods. *)
9237 fun (name, style, _, _, _, _, _) ->
9238 pr " rb_define_method (c_guestfs, \"%s\",\n" name;
9239 pr " ruby_guestfs_%s, %d);\n" name (List.length (snd style))
9244 (* Ruby code to return a struct. *)
9245 and generate_ruby_struct_code typ cols =
9246 pr " VALUE rv = rb_hash_new ();\n";
9250 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new2 (r->%s));\n" name name
9252 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, r->%s_len));\n" name name name
9254 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, 32));\n" name name
9255 | name, (FBytes|FUInt64) ->
9256 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
9258 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), LL2NUM (r->%s));\n" name name
9260 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), UINT2NUM (r->%s));\n" name name
9262 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), INT2NUM (r->%s));\n" name name
9263 | name, FOptPercent ->
9264 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_dbl2big (r->%s));\n" name name
9265 | name, FChar -> (* XXX wrong? *)
9266 pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
9268 pr " guestfs_free_%s (r);\n" typ;
9271 (* Ruby code to return a struct list. *)
9272 and generate_ruby_struct_list_code typ cols =
9273 pr " VALUE rv = rb_ary_new2 (r->len);\n";
9275 pr " for (i = 0; i < r->len; ++i) {\n";
9276 pr " VALUE hv = rb_hash_new ();\n";
9280 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new2 (r->val[i].%s));\n" name name
9282 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, r->val[i].%s_len));\n" name name name
9284 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, 32));\n" name name
9285 | name, (FBytes|FUInt64) ->
9286 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
9288 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), LL2NUM (r->val[i].%s));\n" name name
9290 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), UINT2NUM (r->val[i].%s));\n" name name
9292 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), INT2NUM (r->val[i].%s));\n" name name
9293 | name, FOptPercent ->
9294 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_dbl2big (r->val[i].%s));\n" name name
9295 | name, FChar -> (* XXX wrong? *)
9296 pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
9298 pr " rb_ary_push (rv, hv);\n";
9300 pr " guestfs_free_%s_list (r);\n" typ;
9303 (* Generate Java bindings GuestFS.java file. *)
9304 and generate_java_java () =
9305 generate_header CStyle LGPLv2plus;
9308 package com.redhat.et.libguestfs;
9310 import java.util.HashMap;
9311 import com.redhat.et.libguestfs.LibGuestFSException;
9312 import com.redhat.et.libguestfs.PV;
9313 import com.redhat.et.libguestfs.VG;
9314 import com.redhat.et.libguestfs.LV;
9315 import com.redhat.et.libguestfs.Stat;
9316 import com.redhat.et.libguestfs.StatVFS;
9317 import com.redhat.et.libguestfs.IntBool;
9318 import com.redhat.et.libguestfs.Dirent;
9321 * The GuestFS object is a libguestfs handle.
9325 public class GuestFS {
9326 // Load the native code.
9328 System.loadLibrary (\"guestfs_jni\");
9332 * The native guestfs_h pointer.
9337 * Create a libguestfs handle.
9339 * @throws LibGuestFSException
9341 public GuestFS () throws LibGuestFSException
9345 private native long _create () throws LibGuestFSException;
9348 * Close a libguestfs handle.
9350 * You can also leave handles to be collected by the garbage
9351 * collector, but this method ensures that the resources used
9352 * by the handle are freed up immediately. If you call any
9353 * other methods after closing the handle, you will get an
9356 * @throws LibGuestFSException
9358 public void close () throws LibGuestFSException
9364 private native void _close (long g) throws LibGuestFSException;
9366 public void finalize () throws LibGuestFSException
9374 fun (name, style, _, flags, _, shortdesc, longdesc) ->
9375 if not (List.mem NotInDocs flags); then (
9376 let doc = replace_str longdesc "C<guestfs_" "C<g." in
9378 if List.mem ProtocolLimitWarning flags then
9379 doc ^ "\n\n" ^ protocol_limit_warning
9382 if List.mem DangerWillRobinson flags then
9383 doc ^ "\n\n" ^ danger_will_robinson
9386 match deprecation_notice flags with
9388 | Some txt -> doc ^ "\n\n" ^ txt in
9389 let doc = pod2text ~width:60 name doc in
9390 let doc = List.map ( (* RHBZ#501883 *)
9393 | nonempty -> nonempty
9395 let doc = String.concat "\n * " doc in
9398 pr " * %s\n" shortdesc;
9401 pr " * @throws LibGuestFSException\n";
9405 generate_java_prototype ~public:true ~semicolon:false name style;
9408 pr " if (g == 0)\n";
9409 pr " throw new LibGuestFSException (\"%s: handle is closed\");\n"
9412 if fst style <> RErr then pr "return ";
9414 generate_java_call_args ~handle:"g" (snd style);
9418 generate_java_prototype ~privat:true ~native:true name style;
9425 (* Generate Java call arguments, eg "(handle, foo, bar)" *)
9426 and generate_java_call_args ~handle args =
9428 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
9431 and generate_java_prototype ?(public=false) ?(privat=false) ?(native=false)
9432 ?(semicolon=true) name style =
9433 if privat then pr "private ";
9434 if public then pr "public ";
9435 if native then pr "native ";
9438 (match fst style with
9439 | RErr -> pr "void ";
9440 | RInt _ -> pr "int ";
9441 | RInt64 _ -> pr "long ";
9442 | RBool _ -> pr "boolean ";
9443 | RConstString _ | RConstOptString _ | RString _
9444 | RBufferOut _ -> pr "String ";
9445 | RStringList _ -> pr "String[] ";
9446 | RStruct (_, typ) ->
9447 let name = java_name_of_struct typ in
9449 | RStructList (_, typ) ->
9450 let name = java_name_of_struct typ in
9452 | RHashtable _ -> pr "HashMap<String,String> ";
9455 if native then pr "_%s " name else pr "%s " name;
9457 let needs_comma = ref false in
9466 if !needs_comma then pr ", ";
9467 needs_comma := true;
9471 | Device n | Dev_or_Path n
9477 | StringList n | DeviceList n ->
9488 pr " throws LibGuestFSException";
9489 if semicolon then pr ";"
9491 and generate_java_struct jtyp cols () =
9492 generate_header CStyle LGPLv2plus;
9495 package com.redhat.et.libguestfs;
9498 * Libguestfs %s structure.
9510 | name, FBuffer -> pr " public String %s;\n" name
9511 | name, (FBytes|FUInt64|FInt64) -> pr " public long %s;\n" name
9512 | name, (FUInt32|FInt32) -> pr " public int %s;\n" name
9513 | name, FChar -> pr " public char %s;\n" name
9514 | name, FOptPercent ->
9515 pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
9516 pr " public float %s;\n" name
9521 and generate_java_c () =
9522 generate_header CStyle LGPLv2plus;
9529 #include \"com_redhat_et_libguestfs_GuestFS.h\"
9530 #include \"guestfs.h\"
9532 /* Note that this function returns. The exception is not thrown
9533 * until after the wrapper function returns.
9536 throw_exception (JNIEnv *env, const char *msg)
9539 cl = (*env)->FindClass (env,
9540 \"com/redhat/et/libguestfs/LibGuestFSException\");
9541 (*env)->ThrowNew (env, cl, msg);
9544 JNIEXPORT jlong JNICALL
9545 Java_com_redhat_et_libguestfs_GuestFS__1create
9546 (JNIEnv *env, jobject obj)
9550 g = guestfs_create ();
9552 throw_exception (env, \"GuestFS.create: failed to allocate handle\");
9555 guestfs_set_error_handler (g, NULL, NULL);
9556 return (jlong) (long) g;
9559 JNIEXPORT void JNICALL
9560 Java_com_redhat_et_libguestfs_GuestFS__1close
9561 (JNIEnv *env, jobject obj, jlong jg)
9563 guestfs_h *g = (guestfs_h *) (long) jg;
9570 fun (name, style, _, _, _, _, _) ->
9572 (match fst style with
9573 | RErr -> pr "void ";
9574 | RInt _ -> pr "jint ";
9575 | RInt64 _ -> pr "jlong ";
9576 | RBool _ -> pr "jboolean ";
9577 | RConstString _ | RConstOptString _ | RString _
9578 | RBufferOut _ -> pr "jstring ";
9579 | RStruct _ | RHashtable _ ->
9581 | RStringList _ | RStructList _ ->
9585 pr "Java_com_redhat_et_libguestfs_GuestFS_";
9586 pr "%s" (replace_str ("_" ^ name) "_" "_1");
9588 pr " (JNIEnv *env, jobject obj, jlong jg";
9592 | Device n | Dev_or_Path n
9597 pr ", jstring j%s" n
9598 | StringList n | DeviceList n ->
9599 pr ", jobjectArray j%s" n
9601 pr ", jboolean j%s" n
9609 pr " guestfs_h *g = (guestfs_h *) (long) jg;\n";
9610 let error_code, no_ret =
9611 match fst style with
9612 | RErr -> pr " int r;\n"; "-1", ""
9614 | RInt _ -> pr " int r;\n"; "-1", "0"
9615 | RInt64 _ -> pr " int64_t r;\n"; "-1", "0"
9616 | RConstString _ -> pr " const char *r;\n"; "NULL", "NULL"
9617 | RConstOptString _ -> pr " const char *r;\n"; "NULL", "NULL"
9619 pr " jstring jr;\n";
9620 pr " char *r;\n"; "NULL", "NULL"
9622 pr " jobjectArray jr;\n";
9625 pr " jstring jstr;\n";
9626 pr " char **r;\n"; "NULL", "NULL"
9627 | RStruct (_, typ) ->
9628 pr " jobject jr;\n";
9630 pr " jfieldID fl;\n";
9631 pr " struct guestfs_%s *r;\n" typ; "NULL", "NULL"
9632 | RStructList (_, typ) ->
9633 pr " jobjectArray jr;\n";
9635 pr " jfieldID fl;\n";
9636 pr " jobject jfl;\n";
9637 pr " struct guestfs_%s_list *r;\n" typ; "NULL", "NULL"
9638 | RHashtable _ -> pr " char **r;\n"; "NULL", "NULL"
9640 pr " jstring jr;\n";
9642 pr " size_t size;\n";
9647 | Device n | Dev_or_Path n
9652 pr " const char *%s;\n" n
9653 | StringList n | DeviceList n ->
9654 pr " int %s_len;\n" n;
9655 pr " const char **%s;\n" n
9660 pr " int64_t %s;\n" n
9664 (match fst style with
9665 | RStringList _ | RStructList _ -> true
9666 | RErr | RBool _ | RInt _ | RInt64 _ | RConstString _
9668 | RString _ | RBufferOut _ | RStruct _ | RHashtable _ -> false) ||
9669 List.exists (function
9670 | StringList _ -> true
9671 | DeviceList _ -> true
9672 | _ -> false) (snd style) in
9678 (* Get the parameters. *)
9682 | Device n | Dev_or_Path n
9686 pr " %s = (*env)->GetStringUTFChars (env, j%s, NULL);\n" n n
9688 (* This is completely undocumented, but Java null becomes
9691 pr " %s = j%s ? (*env)->GetStringUTFChars (env, j%s, NULL) : NULL;\n" n n n
9692 | StringList n | DeviceList n ->
9693 pr " %s_len = (*env)->GetArrayLength (env, j%s);\n" n n;
9694 pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (%s_len+1));\n" n n;
9695 pr " for (i = 0; i < %s_len; ++i) {\n" n;
9696 pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
9698 pr " %s[i] = (*env)->GetStringUTFChars (env, o, NULL);\n" n;
9700 pr " %s[%s_len] = NULL;\n" n n;
9704 pr " %s = j%s;\n" n n
9707 (* Make the call. *)
9708 pr " r = guestfs_%s " name;
9709 generate_c_call_args ~handle:"g" style;
9712 (* Release the parameters. *)
9716 | Device n | Dev_or_Path n
9720 pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
9723 pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
9724 | StringList n | DeviceList n ->
9725 pr " for (i = 0; i < %s_len; ++i) {\n" n;
9726 pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
9728 pr " (*env)->ReleaseStringUTFChars (env, o, %s[i]);\n" n;
9730 pr " free (%s);\n" n
9736 (* Check for errors. *)
9737 pr " if (r == %s) {\n" error_code;
9738 pr " throw_exception (env, guestfs_last_error (g));\n";
9739 pr " return %s;\n" no_ret;
9743 (match fst style with
9745 | RInt _ -> pr " return (jint) r;\n"
9746 | RBool _ -> pr " return (jboolean) r;\n"
9747 | RInt64 _ -> pr " return (jlong) r;\n"
9748 | RConstString _ -> pr " return (*env)->NewStringUTF (env, r);\n"
9749 | RConstOptString _ ->
9750 pr " return (*env)->NewStringUTF (env, r); /* XXX r NULL? */\n"
9752 pr " jr = (*env)->NewStringUTF (env, r);\n";
9756 pr " for (r_len = 0; r[r_len] != NULL; ++r_len) ;\n";
9757 pr " cl = (*env)->FindClass (env, \"java/lang/String\");\n";
9758 pr " jstr = (*env)->NewStringUTF (env, \"\");\n";
9759 pr " jr = (*env)->NewObjectArray (env, r_len, cl, jstr);\n";
9760 pr " for (i = 0; i < r_len; ++i) {\n";
9761 pr " jstr = (*env)->NewStringUTF (env, r[i]);\n";
9762 pr " (*env)->SetObjectArrayElement (env, jr, i, jstr);\n";
9763 pr " free (r[i]);\n";
9767 | RStruct (_, typ) ->
9768 let jtyp = java_name_of_struct typ in
9769 let cols = cols_of_struct typ in
9770 generate_java_struct_return typ jtyp cols
9771 | RStructList (_, typ) ->
9772 let jtyp = java_name_of_struct typ in
9773 let cols = cols_of_struct typ in
9774 generate_java_struct_list_return typ jtyp cols
9777 pr " throw_exception (env, \"%s: internal error: please let us know how to make a Java HashMap from JNI bindings!\");\n" name;
9778 pr " return NULL;\n"
9780 pr " jr = (*env)->NewStringUTF (env, r); /* XXX size */\n";
9789 and generate_java_struct_return typ jtyp cols =
9790 pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
9791 pr " jr = (*env)->AllocObject (env, cl);\n";
9795 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
9796 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, r->%s));\n" name;
9799 pr " char s[33];\n";
9800 pr " memcpy (s, r->%s, 32);\n" name;
9802 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
9803 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
9807 pr " int len = r->%s_len;\n" name;
9808 pr " char s[len+1];\n";
9809 pr " memcpy (s, r->%s, len);\n" name;
9810 pr " s[len] = 0;\n";
9811 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
9812 pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
9814 | name, (FBytes|FUInt64|FInt64) ->
9815 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
9816 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
9817 | name, (FUInt32|FInt32) ->
9818 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
9819 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
9820 | name, FOptPercent ->
9821 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
9822 pr " (*env)->SetFloatField (env, jr, fl, r->%s);\n" name;
9824 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
9825 pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
9830 and generate_java_struct_list_return typ jtyp cols =
9831 pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
9832 pr " jr = (*env)->NewObjectArray (env, r->len, cl, NULL);\n";
9833 pr " for (i = 0; i < r->len; ++i) {\n";
9834 pr " jfl = (*env)->AllocObject (env, cl);\n";
9838 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
9839 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, r->val[i].%s));\n" name;
9842 pr " char s[33];\n";
9843 pr " memcpy (s, r->val[i].%s, 32);\n" name;
9845 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
9846 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
9850 pr " int len = r->val[i].%s_len;\n" name;
9851 pr " char s[len+1];\n";
9852 pr " memcpy (s, r->val[i].%s, len);\n" name;
9853 pr " s[len] = 0;\n";
9854 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
9855 pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
9857 | name, (FBytes|FUInt64|FInt64) ->
9858 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
9859 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
9860 | name, (FUInt32|FInt32) ->
9861 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
9862 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
9863 | name, FOptPercent ->
9864 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
9865 pr " (*env)->SetFloatField (env, jfl, fl, r->val[i].%s);\n" name;
9867 pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
9868 pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
9870 pr " (*env)->SetObjectArrayElement (env, jfl, i, jfl);\n";
9872 pr " guestfs_free_%s_list (r);\n" typ;
9875 and generate_java_makefile_inc () =
9876 generate_header HashStyle GPLv2plus;
9878 pr "java_built_sources = \\\n";
9881 pr "\tcom/redhat/et/libguestfs/%s.java \\\n" jtyp;
9883 pr "\tcom/redhat/et/libguestfs/GuestFS.java\n"
9885 and generate_haskell_hs () =
9886 generate_header HaskellStyle LGPLv2plus;
9888 (* XXX We only know how to generate partial FFI for Haskell
9889 * at the moment. Please help out!
9891 let can_generate style =
9895 | RInt64 _, _ -> true
9898 | RConstOptString _, _
9904 | RBufferOut _, _ -> false in
9907 {-# INCLUDE <guestfs.h> #-}
9908 {-# LANGUAGE ForeignFunctionInterface #-}
9913 (* List out the names of the actions we want to export. *)
9915 fun (name, style, _, _, _, _, _) ->
9916 if can_generate style then pr ",\n %s" name
9922 -- Unfortunately some symbols duplicate ones already present
9923 -- in Prelude. We don't know which, so we hard-code a list
9925 import Prelude hiding (truncate)
9929 import Foreign.C.Types
9931 import Control.Exception
9932 import Data.Typeable
9934 data GuestfsS = GuestfsS -- represents the opaque C struct
9935 type GuestfsP = Ptr GuestfsS -- guestfs_h *
9936 type GuestfsH = ForeignPtr GuestfsS -- guestfs_h * with attached finalizer
9938 -- XXX define properly later XXX
9942 data IntBool = IntBool
9944 data StatVFS = StatVFS
9945 data Hashtable = Hashtable
9947 foreign import ccall unsafe \"guestfs_create\" c_create
9949 foreign import ccall unsafe \"&guestfs_close\" c_close
9950 :: FunPtr (GuestfsP -> IO ())
9951 foreign import ccall unsafe \"guestfs_set_error_handler\" c_set_error_handler
9952 :: GuestfsP -> Ptr CInt -> Ptr CInt -> IO ()
9954 create :: IO GuestfsH
9957 c_set_error_handler p nullPtr nullPtr
9958 h <- newForeignPtr c_close p
9961 foreign import ccall unsafe \"guestfs_last_error\" c_last_error
9962 :: GuestfsP -> IO CString
9964 -- last_error :: GuestfsH -> IO (Maybe String)
9965 -- last_error h = do
9966 -- str <- withForeignPtr h (\\p -> c_last_error p)
9967 -- maybePeek peekCString str
9969 last_error :: GuestfsH -> IO (String)
9971 str <- withForeignPtr h (\\p -> c_last_error p)
9973 then return \"no error\"
9974 else peekCString str
9978 (* Generate wrappers for each foreign function. *)
9980 fun (name, style, _, _, _, _, _) ->
9981 if can_generate style then (
9982 pr "foreign import ccall unsafe \"guestfs_%s\" c_%s\n" name name;
9984 generate_haskell_prototype ~handle:"GuestfsP" style;
9988 generate_haskell_prototype ~handle:"GuestfsH" ~hs:true style;
9990 pr "%s %s = do\n" name
9991 (String.concat " " ("h" :: List.map name_of_argt (snd style)));
9993 (* Convert pointer arguments using with* functions. *)
9998 | Pathname n | Device n | Dev_or_Path n | String n -> pr "withCString %s $ \\%s -> " n n
9999 | OptString n -> pr "maybeWith withCString %s $ \\%s -> " n n
10000 | StringList n | DeviceList n -> pr "withMany withCString %s $ \\%s -> withArray0 nullPtr %s $ \\%s -> " n n n n
10001 | Bool _ | Int _ | Int64 _ -> ()
10003 (* Convert integer arguments. *)
10007 | Bool n -> sprintf "(fromBool %s)" n
10008 | Int n -> sprintf "(fromIntegral %s)" n
10009 | Int64 n -> sprintf "(fromIntegral %s)" n
10010 | FileIn n | FileOut n
10011 | Pathname n | Device n | Dev_or_Path n | String n | OptString n | StringList n | DeviceList n -> n
10013 pr "withForeignPtr h (\\p -> c_%s %s)\n" name
10014 (String.concat " " ("p" :: args));
10015 (match fst style with
10016 | RErr | RInt _ | RInt64 _ | RBool _ ->
10017 pr " if (r == -1)\n";
10019 pr " err <- last_error h\n";
10021 | RConstString _ | RConstOptString _ | RString _
10022 | RStringList _ | RStruct _
10023 | RStructList _ | RHashtable _ | RBufferOut _ ->
10024 pr " if (r == nullPtr)\n";
10026 pr " err <- last_error h\n";
10029 (match fst style with
10031 pr " else return ()\n"
10033 pr " else return (fromIntegral r)\n"
10035 pr " else return (fromIntegral r)\n"
10037 pr " else return (toBool r)\n"
10039 | RConstOptString _
10046 pr " else return ()\n" (* XXXXXXXXXXXXXXXXXXXX *)
10052 and generate_haskell_prototype ~handle ?(hs = false) style =
10053 pr "%s -> " handle;
10054 let string = if hs then "String" else "CString" in
10055 let int = if hs then "Int" else "CInt" in
10056 let bool = if hs then "Bool" else "CInt" in
10057 let int64 = if hs then "Integer" else "Int64" in
10061 | Pathname _ | Device _ | Dev_or_Path _ | String _ -> pr "%s" string
10062 | OptString _ -> if hs then pr "Maybe String" else pr "CString"
10063 | StringList _ | DeviceList _ -> if hs then pr "[String]" else pr "Ptr CString"
10064 | Bool _ -> pr "%s" bool
10065 | Int _ -> pr "%s" int
10066 | Int64 _ -> pr "%s" int
10067 | FileIn _ -> pr "%s" string
10068 | FileOut _ -> pr "%s" string
10073 (match fst style with
10074 | RErr -> if not hs then pr "CInt"
10075 | RInt _ -> pr "%s" int
10076 | RInt64 _ -> pr "%s" int64
10077 | RBool _ -> pr "%s" bool
10078 | RConstString _ -> pr "%s" string
10079 | RConstOptString _ -> pr "Maybe %s" string
10080 | RString _ -> pr "%s" string
10081 | RStringList _ -> pr "[%s]" string
10082 | RStruct (_, typ) ->
10083 let name = java_name_of_struct typ in
10085 | RStructList (_, typ) ->
10086 let name = java_name_of_struct typ in
10088 | RHashtable _ -> pr "Hashtable"
10089 | RBufferOut _ -> pr "%s" string
10093 and generate_csharp () =
10094 generate_header CPlusPlusStyle LGPLv2plus;
10096 (* XXX Make this configurable by the C# assembly users. *)
10097 let library = "libguestfs.so.0" in
10100 // These C# bindings are highly experimental at present.
10102 // Firstly they only work on Linux (ie. Mono). In order to get them
10103 // to work on Windows (ie. .Net) you would need to port the library
10104 // itself to Windows first.
10106 // The second issue is that some calls are known to be incorrect and
10107 // can cause Mono to segfault. Particularly: calls which pass or
10108 // return string[], or return any structure value. This is because
10109 // we haven't worked out the correct way to do this from C#.
10111 // The third issue is that when compiling you get a lot of warnings.
10112 // We are not sure whether the warnings are important or not.
10114 // Fourthly we do not routinely build or test these bindings as part
10115 // of the make && make check cycle, which means that regressions might
10118 // Suggestions and patches are welcome.
10122 // gmcs Libguestfs.cs
10123 // mono Libguestfs.exe
10125 // (You'll probably want to add a Test class / static main function
10126 // otherwise this won't do anything useful).
10130 using System.Runtime.InteropServices;
10131 using System.Runtime.Serialization;
10132 using System.Collections;
10136 class Error : System.ApplicationException
10138 public Error (string message) : base (message) {}
10139 protected Error (SerializationInfo info, StreamingContext context) {}
10146 [DllImport (\"%s\")]
10147 static extern IntPtr guestfs_create ();
10151 _handle = guestfs_create ();
10152 if (_handle == IntPtr.Zero)
10153 throw new Error (\"could not create guestfs handle\");
10156 [DllImport (\"%s\")]
10157 static extern void guestfs_close (IntPtr h);
10161 guestfs_close (_handle);
10164 [DllImport (\"%s\")]
10165 static extern string guestfs_last_error (IntPtr h);
10167 " library library library;
10169 (* Generate C# structure bindings. We prefix struct names with
10170 * underscore because C# cannot have conflicting struct names and
10171 * method names (eg. "class stat" and "stat").
10175 pr " [StructLayout (LayoutKind.Sequential)]\n";
10176 pr " public class _%s {\n" typ;
10179 | name, FChar -> pr " char %s;\n" name
10180 | name, FString -> pr " string %s;\n" name
10182 pr " uint %s_len;\n" name;
10183 pr " string %s;\n" name
10185 pr " [MarshalAs (UnmanagedType.ByValTStr, SizeConst=16)]\n";
10186 pr " string %s;\n" name
10187 | name, FUInt32 -> pr " uint %s;\n" name
10188 | name, FInt32 -> pr " int %s;\n" name
10189 | name, (FUInt64|FBytes) -> pr " ulong %s;\n" name
10190 | name, FInt64 -> pr " long %s;\n" name
10191 | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
10197 (* Generate C# function bindings. *)
10199 fun (name, style, _, _, _, shortdesc, _) ->
10200 let rec csharp_return_type () =
10201 match fst style with
10203 | RBool n -> "bool"
10205 | RInt64 n -> "long"
10207 | RConstOptString n
10209 | RBufferOut n -> "string"
10210 | RStruct (_,n) -> "_" ^ n
10211 | RHashtable n -> "Hashtable"
10212 | RStringList n -> "string[]"
10213 | RStructList (_,n) -> sprintf "_%s[]" n
10215 and c_return_type () =
10216 match fst style with
10220 | RInt64 _ -> "long"
10222 | RConstOptString _
10224 | RBufferOut _ -> "string"
10225 | RStruct (_,n) -> "_" ^ n
10227 | RStringList _ -> "string[]"
10228 | RStructList (_,n) -> sprintf "_%s[]" n
10230 and c_error_comparison () =
10231 match fst style with
10235 | RInt64 _ -> "== -1"
10237 | RConstOptString _
10243 | RStructList (_,_) -> "== null"
10245 and generate_extern_prototype () =
10246 pr " static extern %s guestfs_%s (IntPtr h"
10247 (c_return_type ()) name;
10250 | Pathname n | Device n | Dev_or_Path n | String n | OptString n
10251 | FileIn n | FileOut n ->
10252 pr ", [In] string %s" n
10253 | StringList n | DeviceList n ->
10254 pr ", [In] string[] %s" n
10264 and generate_public_prototype () =
10265 pr " public %s %s (" (csharp_return_type ()) name;
10266 let comma = ref false in
10268 if !comma then pr ", ";
10273 | Pathname n | Device n | Dev_or_Path n | String n | OptString n
10274 | FileIn n | FileOut n ->
10275 next (); pr "string %s" n
10276 | StringList n | DeviceList n ->
10277 next (); pr "string[] %s" n
10279 next (); pr "bool %s" n
10281 next (); pr "int %s" n
10283 next (); pr "long %s" n
10287 and generate_call () =
10288 pr "guestfs_%s (_handle" name;
10289 List.iter (fun arg -> pr ", %s" (name_of_argt arg)) (snd style);
10293 pr " [DllImport (\"%s\")]\n" library;
10294 generate_extern_prototype ();
10296 pr " /// <summary>\n";
10297 pr " /// %s\n" shortdesc;
10298 pr " /// </summary>\n";
10299 generate_public_prototype ();
10301 pr " %s r;\n" (c_return_type ());
10304 pr " if (r %s)\n" (c_error_comparison ());
10305 pr " throw new Error (\"%s: \" + guestfs_last_error (_handle));\n"
10307 (match fst style with
10310 pr " return r != 0 ? true : false;\n"
10312 pr " Hashtable rr = new Hashtable ();\n";
10313 pr " for (int i = 0; i < r.Length; i += 2)\n";
10314 pr " rr.Add (r[i], r[i+1]);\n";
10316 | RInt _ | RInt64 _ | RConstString _ | RConstOptString _
10317 | RString _ | RBufferOut _ | RStruct _ | RStringList _
10323 ) all_functions_sorted;
10329 and generate_bindtests () =
10330 generate_header CStyle LGPLv2plus;
10334 #include <stdlib.h>
10335 #include <inttypes.h>
10336 #include <string.h>
10338 #include \"guestfs.h\"
10339 #include \"guestfs-internal.h\"
10340 #include \"guestfs-internal-actions.h\"
10341 #include \"guestfs_protocol.h\"
10343 #define error guestfs_error
10344 #define safe_calloc guestfs_safe_calloc
10345 #define safe_malloc guestfs_safe_malloc
10348 print_strings (char *const *argv)
10353 for (argc = 0; argv[argc] != NULL; ++argc) {
10354 if (argc > 0) printf (\", \");
10355 printf (\"\\\"%%s\\\"\", argv[argc]);
10360 /* The test0 function prints its parameters to stdout. */
10364 match test_functions with
10365 | [] -> assert false
10366 | test0 :: tests -> test0, tests in
10369 let (name, style, _, _, _, _, _) = test0 in
10370 generate_prototype ~extern:false ~semicolon:false ~newline:true
10371 ~handle:"g" ~prefix:"guestfs__" name style;
10376 | Device n | Dev_or_Path n
10379 | FileOut n -> pr " printf (\"%%s\\n\", %s);\n" n
10380 | OptString n -> pr " printf (\"%%s\\n\", %s ? %s : \"null\");\n" n n
10381 | StringList n | DeviceList n -> pr " print_strings (%s);\n" n
10382 | Bool n -> pr " printf (\"%%s\\n\", %s ? \"true\" : \"false\");\n" n
10383 | Int n -> pr " printf (\"%%d\\n\", %s);\n" n
10384 | Int64 n -> pr " printf (\"%%\" PRIi64 \"\\n\", %s);\n" n
10386 pr " /* Java changes stdout line buffering so we need this: */\n";
10387 pr " fflush (stdout);\n";
10393 fun (name, style, _, _, _, _, _) ->
10394 if String.sub name (String.length name - 3) 3 <> "err" then (
10395 pr "/* Test normal return. */\n";
10396 generate_prototype ~extern:false ~semicolon:false ~newline:true
10397 ~handle:"g" ~prefix:"guestfs__" name style;
10399 (match fst style with
10404 pr " sscanf (val, \"%%d\", &r);\n";
10407 pr " int64_t r;\n";
10408 pr " sscanf (val, \"%%\" SCNi64, &r);\n";
10411 pr " return STREQ (val, \"true\");\n"
10413 | RConstOptString _ ->
10414 (* Can't return the input string here. Return a static
10415 * string so we ensure we get a segfault if the caller
10416 * tries to free it.
10418 pr " return \"static string\";\n"
10420 pr " return strdup (val);\n"
10422 pr " char **strs;\n";
10424 pr " sscanf (val, \"%%d\", &n);\n";
10425 pr " strs = safe_malloc (g, (n+1) * sizeof (char *));\n";
10426 pr " for (i = 0; i < n; ++i) {\n";
10427 pr " strs[i] = safe_malloc (g, 16);\n";
10428 pr " snprintf (strs[i], 16, \"%%d\", i);\n";
10430 pr " strs[n] = NULL;\n";
10431 pr " return strs;\n"
10432 | RStruct (_, typ) ->
10433 pr " struct guestfs_%s *r;\n" typ;
10434 pr " r = safe_calloc (g, sizeof *r, 1);\n";
10436 | RStructList (_, typ) ->
10437 pr " struct guestfs_%s_list *r;\n" typ;
10438 pr " r = safe_calloc (g, sizeof *r, 1);\n";
10439 pr " sscanf (val, \"%%d\", &r->len);\n";
10440 pr " r->val = safe_calloc (g, r->len, sizeof *r->val);\n";
10443 pr " char **strs;\n";
10445 pr " sscanf (val, \"%%d\", &n);\n";
10446 pr " strs = safe_malloc (g, (n*2+1) * sizeof (*strs));\n";
10447 pr " for (i = 0; i < n; ++i) {\n";
10448 pr " strs[i*2] = safe_malloc (g, 16);\n";
10449 pr " strs[i*2+1] = safe_malloc (g, 16);\n";
10450 pr " snprintf (strs[i*2], 16, \"%%d\", i);\n";
10451 pr " snprintf (strs[i*2+1], 16, \"%%d\", i);\n";
10453 pr " strs[n*2] = NULL;\n";
10454 pr " return strs;\n"
10456 pr " return strdup (val);\n"
10461 pr "/* Test error return. */\n";
10462 generate_prototype ~extern:false ~semicolon:false ~newline:true
10463 ~handle:"g" ~prefix:"guestfs__" name style;
10465 pr " error (g, \"error\");\n";
10466 (match fst style with
10467 | RErr | RInt _ | RInt64 _ | RBool _ ->
10469 | RConstString _ | RConstOptString _
10470 | RString _ | RStringList _ | RStruct _
10474 pr " return NULL;\n"
10481 and generate_ocaml_bindtests () =
10482 generate_header OCamlStyle GPLv2plus;
10486 let g = Guestfs.create () in
10490 String.concat " " (
10493 | CallString s -> "\"" ^ s ^ "\""
10494 | CallOptString None -> "None"
10495 | CallOptString (Some s) -> sprintf "(Some \"%s\")" s
10496 | CallStringList xs ->
10497 "[|" ^ String.concat ";" (List.map (sprintf "\"%s\"") xs) ^ "|]"
10498 | CallInt i when i >= 0 -> string_of_int i
10499 | CallInt i (* when i < 0 *) -> "(" ^ string_of_int i ^ ")"
10500 | CallInt64 i when i >= 0L -> Int64.to_string i ^ "L"
10501 | CallInt64 i (* when i < 0L *) -> "(" ^ Int64.to_string i ^ "L)"
10502 | CallBool b -> string_of_bool b
10507 generate_lang_bindtests (
10508 fun f args -> pr " Guestfs.%s g %s;\n" f (mkargs args)
10511 pr "print_endline \"EOF\"\n"
10513 and generate_perl_bindtests () =
10514 pr "#!/usr/bin/perl -w\n";
10515 generate_header HashStyle GPLv2plus;
10522 my $g = Sys::Guestfs->new ();
10526 String.concat ", " (
10529 | CallString s -> "\"" ^ s ^ "\""
10530 | CallOptString None -> "undef"
10531 | CallOptString (Some s) -> sprintf "\"%s\"" s
10532 | CallStringList xs ->
10533 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
10534 | CallInt i -> string_of_int i
10535 | CallInt64 i -> Int64.to_string i
10536 | CallBool b -> if b then "1" else "0"
10541 generate_lang_bindtests (
10542 fun f args -> pr "$g->%s (%s);\n" f (mkargs args)
10545 pr "print \"EOF\\n\"\n"
10547 and generate_python_bindtests () =
10548 generate_header HashStyle GPLv2plus;
10553 g = guestfs.GuestFS ()
10557 String.concat ", " (
10560 | CallString s -> "\"" ^ s ^ "\""
10561 | CallOptString None -> "None"
10562 | CallOptString (Some s) -> sprintf "\"%s\"" s
10563 | CallStringList xs ->
10564 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
10565 | CallInt i -> string_of_int i
10566 | CallInt64 i -> Int64.to_string i
10567 | CallBool b -> if b then "1" else "0"
10572 generate_lang_bindtests (
10573 fun f args -> pr "g.%s (%s)\n" f (mkargs args)
10576 pr "print \"EOF\"\n"
10578 and generate_ruby_bindtests () =
10579 generate_header HashStyle GPLv2plus;
10584 g = Guestfs::create()
10588 String.concat ", " (
10591 | CallString s -> "\"" ^ s ^ "\""
10592 | CallOptString None -> "nil"
10593 | CallOptString (Some s) -> sprintf "\"%s\"" s
10594 | CallStringList xs ->
10595 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
10596 | CallInt i -> string_of_int i
10597 | CallInt64 i -> Int64.to_string i
10598 | CallBool b -> string_of_bool b
10603 generate_lang_bindtests (
10604 fun f args -> pr "g.%s(%s)\n" f (mkargs args)
10607 pr "print \"EOF\\n\"\n"
10609 and generate_java_bindtests () =
10610 generate_header CStyle GPLv2plus;
10613 import com.redhat.et.libguestfs.*;
10615 public class Bindtests {
10616 public static void main (String[] argv)
10619 GuestFS g = new GuestFS ();
10623 String.concat ", " (
10626 | CallString s -> "\"" ^ s ^ "\""
10627 | CallOptString None -> "null"
10628 | CallOptString (Some s) -> sprintf "\"%s\"" s
10629 | CallStringList xs ->
10631 String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "}"
10632 | CallInt i -> string_of_int i
10633 | CallInt64 i -> Int64.to_string i
10634 | CallBool b -> string_of_bool b
10639 generate_lang_bindtests (
10640 fun f args -> pr " g.%s (%s);\n" f (mkargs args)
10644 System.out.println (\"EOF\");
10646 catch (Exception exn) {
10647 System.err.println (exn);
10654 and generate_haskell_bindtests () =
10655 generate_header HaskellStyle GPLv2plus;
10658 module Bindtests where
10659 import qualified Guestfs
10662 g <- Guestfs.create
10666 String.concat " " (
10669 | CallString s -> "\"" ^ s ^ "\""
10670 | CallOptString None -> "Nothing"
10671 | CallOptString (Some s) -> sprintf "(Just \"%s\")" s
10672 | CallStringList xs ->
10673 "[" ^ String.concat "," (List.map (sprintf "\"%s\"") xs) ^ "]"
10674 | CallInt i when i < 0 -> "(" ^ string_of_int i ^ ")"
10675 | CallInt i -> string_of_int i
10676 | CallInt64 i when i < 0L -> "(" ^ Int64.to_string i ^ ")"
10677 | CallInt64 i -> Int64.to_string i
10678 | CallBool true -> "True"
10679 | CallBool false -> "False"
10684 generate_lang_bindtests (
10685 fun f args -> pr " Guestfs.%s g %s\n" f (mkargs args)
10688 pr " putStrLn \"EOF\"\n"
10690 (* Language-independent bindings tests - we do it this way to
10691 * ensure there is parity in testing bindings across all languages.
10693 and generate_lang_bindtests call =
10694 call "test0" [CallString "abc"; CallOptString (Some "def");
10695 CallStringList []; CallBool false;
10696 CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
10697 call "test0" [CallString "abc"; CallOptString None;
10698 CallStringList []; CallBool false;
10699 CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
10700 call "test0" [CallString ""; CallOptString (Some "def");
10701 CallStringList []; CallBool false;
10702 CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
10703 call "test0" [CallString ""; CallOptString (Some "");
10704 CallStringList []; CallBool false;
10705 CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
10706 call "test0" [CallString "abc"; CallOptString (Some "def");
10707 CallStringList ["1"]; CallBool false;
10708 CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
10709 call "test0" [CallString "abc"; CallOptString (Some "def");
10710 CallStringList ["1"; "2"]; CallBool false;
10711 CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
10712 call "test0" [CallString "abc"; CallOptString (Some "def");
10713 CallStringList ["1"]; CallBool true;
10714 CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
10715 call "test0" [CallString "abc"; CallOptString (Some "def");
10716 CallStringList ["1"]; CallBool false;
10717 CallInt (-1); CallInt64 (-1L); CallString "123"; CallString "456"];
10718 call "test0" [CallString "abc"; CallOptString (Some "def");
10719 CallStringList ["1"]; CallBool false;
10720 CallInt (-2); CallInt64 (-2L); CallString "123"; CallString "456"];
10721 call "test0" [CallString "abc"; CallOptString (Some "def");
10722 CallStringList ["1"]; CallBool false;
10723 CallInt 1; CallInt64 1L; CallString "123"; CallString "456"];
10724 call "test0" [CallString "abc"; CallOptString (Some "def");
10725 CallStringList ["1"]; CallBool false;
10726 CallInt 2; CallInt64 2L; CallString "123"; CallString "456"];
10727 call "test0" [CallString "abc"; CallOptString (Some "def");
10728 CallStringList ["1"]; CallBool false;
10729 CallInt 4095; CallInt64 4095L; CallString "123"; CallString "456"];
10730 call "test0" [CallString "abc"; CallOptString (Some "def");
10731 CallStringList ["1"]; CallBool false;
10732 CallInt 0; CallInt64 0L; CallString ""; CallString ""]
10734 (* XXX Add here tests of the return and error functions. *)
10736 (* Code to generator bindings for virt-inspector. Currently only
10737 * implemented for OCaml code (for virt-p2v 2.0).
10739 let rng_input = "inspector/virt-inspector.rng"
10741 (* Read the input file and parse it into internal structures. This is
10742 * by no means a complete RELAX NG parser, but is just enough to be
10743 * able to parse the specific input file.
10746 | Element of string * rng list (* <element name=name/> *)
10747 | Attribute of string * rng list (* <attribute name=name/> *)
10748 | Interleave of rng list (* <interleave/> *)
10749 | ZeroOrMore of rng (* <zeroOrMore/> *)
10750 | OneOrMore of rng (* <oneOrMore/> *)
10751 | Optional of rng (* <optional/> *)
10752 | Choice of string list (* <choice><value/>*</choice> *)
10753 | Value of string (* <value>str</value> *)
10754 | Text (* <text/> *)
10756 let rec string_of_rng = function
10757 | Element (name, xs) ->
10758 "Element (\"" ^ name ^ "\", (" ^ string_of_rng_list xs ^ "))"
10759 | Attribute (name, xs) ->
10760 "Attribute (\"" ^ name ^ "\", (" ^ string_of_rng_list xs ^ "))"
10761 | Interleave xs -> "Interleave (" ^ string_of_rng_list xs ^ ")"
10762 | ZeroOrMore rng -> "ZeroOrMore (" ^ string_of_rng rng ^ ")"
10763 | OneOrMore rng -> "OneOrMore (" ^ string_of_rng rng ^ ")"
10764 | Optional rng -> "Optional (" ^ string_of_rng rng ^ ")"
10765 | Choice values -> "Choice [" ^ String.concat ", " values ^ "]"
10766 | Value value -> "Value \"" ^ value ^ "\""
10769 and string_of_rng_list xs =
10770 String.concat ", " (List.map string_of_rng xs)
10772 let rec parse_rng ?defines context = function
10774 | Xml.Element ("element", ["name", name], children) :: rest ->
10775 Element (name, parse_rng ?defines context children)
10776 :: parse_rng ?defines context rest
10777 | Xml.Element ("attribute", ["name", name], children) :: rest ->
10778 Attribute (name, parse_rng ?defines context children)
10779 :: parse_rng ?defines context rest
10780 | Xml.Element ("interleave", [], children) :: rest ->
10781 Interleave (parse_rng ?defines context children)
10782 :: parse_rng ?defines context rest
10783 | Xml.Element ("zeroOrMore", [], [child]) :: rest ->
10784 let rng = parse_rng ?defines context [child] in
10786 | [child] -> ZeroOrMore child :: parse_rng ?defines context rest
10788 failwithf "%s: <zeroOrMore> contains more than one child element"
10791 | Xml.Element ("oneOrMore", [], [child]) :: rest ->
10792 let rng = parse_rng ?defines context [child] in
10794 | [child] -> OneOrMore child :: parse_rng ?defines context rest
10796 failwithf "%s: <oneOrMore> contains more than one child element"
10799 | Xml.Element ("optional", [], [child]) :: rest ->
10800 let rng = parse_rng ?defines context [child] in
10802 | [child] -> Optional child :: parse_rng ?defines context rest
10804 failwithf "%s: <optional> contains more than one child element"
10807 | Xml.Element ("choice", [], children) :: rest ->
10808 let values = List.map (
10809 function Xml.Element ("value", [], [Xml.PCData value]) -> value
10811 failwithf "%s: can't handle anything except <value> in <choice>"
10815 :: parse_rng ?defines context rest
10816 | Xml.Element ("value", [], [Xml.PCData value]) :: rest ->
10817 Value value :: parse_rng ?defines context rest
10818 | Xml.Element ("text", [], []) :: rest ->
10819 Text :: parse_rng ?defines context rest
10820 | Xml.Element ("ref", ["name", name], []) :: rest ->
10821 (* Look up the reference. Because of limitations in this parser,
10822 * we can't handle arbitrarily nested <ref> yet. You can only
10823 * use <ref> from inside <start>.
10825 (match defines with
10827 failwithf "%s: contains <ref>, but no refs are defined yet" context
10829 let rng = StringMap.find name map in
10830 rng @ parse_rng ?defines context rest
10833 failwithf "%s: can't handle '%s' in schema" context (Xml.to_string x)
10836 let xml = Xml.parse_file rng_input in
10838 | Xml.Element ("grammar", _,
10839 Xml.Element ("start", _, gram) :: defines) ->
10840 (* The <define/> elements are referenced in the <start> section,
10841 * so build a map of those first.
10843 let defines = List.fold_left (
10845 function Xml.Element ("define", ["name", name], defn) ->
10846 StringMap.add name defn map
10848 failwithf "%s: expected <define name=name/>" rng_input
10849 ) StringMap.empty defines in
10850 let defines = StringMap.mapi parse_rng defines in
10852 (* Parse the <start> clause, passing the defines. *)
10853 parse_rng ~defines "<start>" gram
10855 failwithf "%s: input is not <grammar><start/><define>*</grammar>"
10858 let name_of_field = function
10859 | Element (name, _) | Attribute (name, _)
10860 | ZeroOrMore (Element (name, _))
10861 | OneOrMore (Element (name, _))
10862 | Optional (Element (name, _)) -> name
10863 | Optional (Attribute (name, _)) -> name
10864 | Text -> (* an unnamed field in an element *)
10867 failwithf "name_of_field failed at: %s" (string_of_rng rng)
10869 (* At the moment this function only generates OCaml types. However we
10870 * should parameterize it later so it can generate types/structs in a
10871 * variety of languages.
10873 let generate_types xs =
10874 (* A simple type is one that can be printed out directly, eg.
10875 * "string option". A complex type is one which has a name and has
10876 * to be defined via another toplevel definition, eg. a struct.
10878 * generate_type generates code for either simple or complex types.
10879 * In the simple case, it returns the string ("string option"). In
10880 * the complex case, it returns the name ("mountpoint"). In the
10881 * complex case it has to print out the definition before returning,
10882 * so it should only be called when we are at the beginning of a
10883 * new line (BOL context).
10885 let rec generate_type = function
10886 | Text -> (* string *)
10888 | Choice values -> (* [`val1|`val2|...] *)
10889 "[" ^ String.concat "|" (List.map ((^)"`") values) ^ "]", true
10890 | ZeroOrMore rng -> (* <rng> list *)
10891 let t, is_simple = generate_type rng in
10892 t ^ " list (* 0 or more *)", is_simple
10893 | OneOrMore rng -> (* <rng> list *)
10894 let t, is_simple = generate_type rng in
10895 t ^ " list (* 1 or more *)", is_simple
10896 (* virt-inspector hack: bool *)
10897 | Optional (Attribute (name, [Value "1"])) ->
10899 | Optional rng -> (* <rng> list *)
10900 let t, is_simple = generate_type rng in
10901 t ^ " option", is_simple
10902 (* type name = { fields ... } *)
10903 | Element (name, fields) when is_attrs_interleave fields ->
10904 generate_type_struct name (get_attrs_interleave fields)
10905 | Element (name, [field]) (* type name = field *)
10906 | Attribute (name, [field]) ->
10907 let t, is_simple = generate_type field in
10908 if is_simple then (t, true)
10910 pr "type %s = %s\n" name t;
10913 | Element (name, fields) -> (* type name = { fields ... } *)
10914 generate_type_struct name fields
10916 failwithf "generate_type failed at: %s" (string_of_rng rng)
10918 and is_attrs_interleave = function
10919 | [Interleave _] -> true
10920 | Attribute _ :: fields -> is_attrs_interleave fields
10921 | Optional (Attribute _) :: fields -> is_attrs_interleave fields
10924 and get_attrs_interleave = function
10925 | [Interleave fields] -> fields
10926 | ((Attribute _) as field) :: fields
10927 | ((Optional (Attribute _)) as field) :: fields ->
10928 field :: get_attrs_interleave fields
10929 | _ -> assert false
10931 and generate_types xs =
10932 List.iter (fun x -> ignore (generate_type x)) xs
10934 and generate_type_struct name fields =
10935 (* Calculate the types of the fields first. We have to do this
10936 * before printing anything so we are still in BOL context.
10938 let types = List.map fst (List.map generate_type fields) in
10940 (* Special case of a struct containing just a string and another
10941 * field. Turn it into an assoc list.
10944 | ["string"; other] ->
10945 let fname1, fname2 =
10947 | [f1; f2] -> name_of_field f1, name_of_field f2
10948 | _ -> assert false in
10949 pr "type %s = string * %s (* %s -> %s *)\n" name other fname1 fname2;
10953 pr "type %s = {\n" name;
10955 fun (field, ftype) ->
10956 let fname = name_of_field field in
10957 pr " %s_%s : %s;\n" name fname ftype
10958 ) (List.combine fields types);
10960 (* Return the name of this type, and
10961 * false because it's not a simple type.
10968 let generate_parsers xs =
10969 (* As for generate_type above, generate_parser makes a parser for
10970 * some type, and returns the name of the parser it has generated.
10971 * Because it (may) need to print something, it should always be
10972 * called in BOL context.
10974 let rec generate_parser = function
10975 | Text -> (* string *)
10976 "string_child_or_empty"
10977 | Choice values -> (* [`val1|`val2|...] *)
10978 sprintf "(fun x -> match Xml.pcdata (first_child x) with %s | str -> failwith (\"unexpected field value: \" ^ str))"
10980 (List.map (fun v -> sprintf "%S -> `%s" v v) values))
10981 | ZeroOrMore rng -> (* <rng> list *)
10982 let pa = generate_parser rng in
10983 sprintf "(fun x -> List.map %s (Xml.children x))" pa
10984 | OneOrMore rng -> (* <rng> list *)
10985 let pa = generate_parser rng in
10986 sprintf "(fun x -> List.map %s (Xml.children x))" pa
10987 (* virt-inspector hack: bool *)
10988 | Optional (Attribute (name, [Value "1"])) ->
10989 sprintf "(fun x -> try ignore (Xml.attrib x %S); true with Xml.No_attribute _ -> false)" name
10990 | Optional rng -> (* <rng> list *)
10991 let pa = generate_parser rng in
10992 sprintf "(function None -> None | Some x -> Some (%s x))" pa
10993 (* type name = { fields ... } *)
10994 | Element (name, fields) when is_attrs_interleave fields ->
10995 generate_parser_struct name (get_attrs_interleave fields)
10996 | Element (name, [field]) -> (* type name = field *)
10997 let pa = generate_parser field in
10998 let parser_name = sprintf "parse_%s_%d" name (unique ()) in
10999 pr "let %s =\n" parser_name;
11001 pr "let parse_%s = %s\n" name parser_name;
11003 | Attribute (name, [field]) ->
11004 let pa = generate_parser field in
11005 let parser_name = sprintf "parse_%s_%d" name (unique ()) in
11006 pr "let %s =\n" parser_name;
11008 pr "let parse_%s = %s\n" name parser_name;
11010 | Element (name, fields) -> (* type name = { fields ... } *)
11011 generate_parser_struct name ([], fields)
11013 failwithf "generate_parser failed at: %s" (string_of_rng rng)
11015 and is_attrs_interleave = function
11016 | [Interleave _] -> true
11017 | Attribute _ :: fields -> is_attrs_interleave fields
11018 | Optional (Attribute _) :: fields -> is_attrs_interleave fields
11021 and get_attrs_interleave = function
11022 | [Interleave fields] -> [], fields
11023 | ((Attribute _) as field) :: fields
11024 | ((Optional (Attribute _)) as field) :: fields ->
11025 let attrs, interleaves = get_attrs_interleave fields in
11026 (field :: attrs), interleaves
11027 | _ -> assert false
11029 and generate_parsers xs =
11030 List.iter (fun x -> ignore (generate_parser x)) xs
11032 and generate_parser_struct name (attrs, interleaves) =
11033 (* Generate parsers for the fields first. We have to do this
11034 * before printing anything so we are still in BOL context.
11036 let fields = attrs @ interleaves in
11037 let pas = List.map generate_parser fields in
11039 (* Generate an intermediate tuple from all the fields first.
11040 * If the type is just a string + another field, then we will
11041 * return this directly, otherwise it is turned into a record.
11043 * RELAX NG note: This code treats <interleave> and plain lists of
11044 * fields the same. In other words, it doesn't bother enforcing
11045 * any ordering of fields in the XML.
11047 pr "let parse_%s x =\n" name;
11048 pr " let t = (\n ";
11049 let comma = ref false in
11052 if !comma then pr ",\n ";
11055 | Optional (Attribute (fname, [field])), pa ->
11057 | Optional (Element (fname, [field])), pa ->
11058 pr "%s (optional_child %S x)" pa fname
11059 | Attribute (fname, [Text]), _ ->
11060 pr "attribute %S x" fname
11061 | (ZeroOrMore _ | OneOrMore _), pa ->
11066 let fname = name_of_field field in
11067 pr "%s (child %S x)" pa fname
11068 ) (List.combine fields pas);
11072 | [Element (_, [Text]) | Attribute (_, [Text]); _] ->
11076 pr " (Obj.magic t : %s)\n" name
11080 | (Optional (Attribute (fname, [field])), pa) ->
11081 pr " %s_%s =\n" name fname;
11083 | (Optional (Element (fname, [field])), pa) ->
11084 pr " %s_%s =\n" name fname;
11085 pr " (let x = optional_child %S x in\n" fname;
11088 let fname = name_of_field field in
11089 pr " %s_%s =\n" name fname;
11090 pr " (let x = child %S x in\n" fname;
11092 ) (List.combine fields pas);
11096 sprintf "parse_%s" name
11099 generate_parsers xs
11101 (* Generate ocaml/guestfs_inspector.mli. *)
11102 let generate_ocaml_inspector_mli () =
11103 generate_header ~extra_inputs:[rng_input] OCamlStyle LGPLv2plus;
11106 (** This is an OCaml language binding to the external [virt-inspector]
11109 For more information, please read the man page [virt-inspector(1)].
11114 generate_types grammar;
11115 pr "(** The nested information returned from the {!inspect} function. *)\n";
11119 val inspect : ?connect:string -> ?xml:string -> string list -> operatingsystems
11120 (** To inspect a libvirt domain called [name], pass a singleton
11121 list: [inspect [name]]. When using libvirt only, you may
11122 optionally pass a libvirt URI using [inspect ~connect:uri ...].
11124 To inspect a disk image or images, pass a list of the filenames
11125 of the disk images: [inspect filenames]
11127 This function inspects the given guest or disk images and
11128 returns a list of operating system(s) found and a large amount
11129 of information about them. In the vast majority of cases,
11130 a virtual machine only contains a single operating system.
11132 If the optional [~xml] parameter is given, then this function
11133 skips running the external virt-inspector program and just
11134 parses the given XML directly (which is expected to be XML
11135 produced from a previous run of virt-inspector). The list of
11136 names and connect URI are ignored in this case.
11138 This function can throw a wide variety of exceptions, for example
11139 if the external virt-inspector program cannot be found, or if
11140 it doesn't generate valid XML.
11144 (* Generate ocaml/guestfs_inspector.ml. *)
11145 let generate_ocaml_inspector_ml () =
11146 generate_header ~extra_inputs:[rng_input] OCamlStyle LGPLv2plus;
11151 generate_types grammar;
11155 (* Misc functions which are used by the parser code below. *)
11156 let first_child = function
11157 | Xml.Element (_, _, c::_) -> c
11158 | Xml.Element (name, _, []) ->
11159 failwith (\"expected <\" ^ name ^ \"/> to have a child node\")
11160 | Xml.PCData str ->
11161 failwith (\"expected XML tag, but read PCDATA '\" ^ str ^ \"' instead\")
11163 let string_child_or_empty = function
11164 | Xml.Element (_, _, [Xml.PCData s]) -> s
11165 | Xml.Element (_, _, []) -> \"\"
11166 | Xml.Element (x, _, _) ->
11167 failwith (\"expected XML tag with a single PCDATA child, but got \" ^
11169 | Xml.PCData str ->
11170 failwith (\"expected XML tag, but read PCDATA '\" ^ str ^ \"' instead\")
11172 let optional_child name xml =
11173 let children = Xml.children xml in
11175 Some (List.find (function
11176 | Xml.Element (n, _, _) when n = name -> true
11177 | _ -> false) children)
11181 let child name xml =
11182 match optional_child name xml with
11185 failwith (\"mandatory field <\" ^ name ^ \"/> missing in XML output\")
11187 let attribute name xml =
11188 try Xml.attrib xml name
11189 with Xml.No_attribute _ ->
11190 failwith (\"mandatory attribute \" ^ name ^ \" missing in XML output\")
11194 generate_parsers grammar;
11198 (* Run external virt-inspector, then use parser to parse the XML. *)
11199 let inspect ?connect ?xml names =
11203 if names = [] then invalid_arg \"inspect: no names given\";
11204 let cmd = [ \"virt-inspector\"; \"--xml\" ] @
11205 (match connect with None -> [] | Some uri -> [ \"--connect\"; uri ]) @
11207 let cmd = List.map Filename.quote cmd in
11208 let cmd = String.concat \" \" cmd in
11209 let chan = open_process_in cmd in
11210 let xml = Xml.parse_in chan in
11211 (match close_process_in chan with
11213 | WEXITED _ -> failwith \"external virt-inspector command failed\"
11214 | WSIGNALED i | WSTOPPED i ->
11215 failwith (\"external virt-inspector command died or stopped on sig \" ^
11220 Xml.parse_string doc in
11221 parse_operatingsystems xml
11224 (* This is used to generate the src/MAX_PROC_NR file which
11225 * contains the maximum procedure number, a surrogate for the
11226 * ABI version number. See src/Makefile.am for the details.
11228 and generate_max_proc_nr () =
11229 let proc_nrs = List.map (
11230 fun (_, _, proc_nr, _, _, _, _) -> proc_nr
11231 ) daemon_functions in
11233 let max_proc_nr = List.fold_left max 0 proc_nrs in
11235 pr "%d\n" max_proc_nr
11237 let output_to filename k =
11238 let filename_new = filename ^ ".new" in
11239 chan := open_out filename_new;
11242 chan := Pervasives.stdout;
11244 (* Is the new file different from the current file? *)
11245 if Sys.file_exists filename && files_equal filename filename_new then
11246 unlink filename_new (* same, so skip it *)
11248 (* different, overwrite old one *)
11249 (try chmod filename 0o644 with Unix_error _ -> ());
11250 rename filename_new filename;
11251 chmod filename 0o444;
11252 printf "written %s\n%!" filename;
11255 let perror msg = function
11256 | Unix_error (err, _, _) ->
11257 eprintf "%s: %s\n" msg (error_message err)
11259 eprintf "%s: %s\n" msg (Printexc.to_string exn)
11261 (* Main program. *)
11264 try openfile "HACKING" [O_RDWR] 0
11266 | Unix_error (ENOENT, _, _) ->
11268 You are probably running this from the wrong directory.
11269 Run it from the top source directory using the command
11274 perror "open: HACKING" exn;
11277 (* Acquire a lock so parallel builds won't try to run the generator
11278 * twice at the same time. Subsequent builds will wait for the first
11279 * one to finish. Note the lock is released implicitly when the
11282 (try lockf lock_fd F_LOCK 1
11284 perror "lock: HACKING" exn;
11287 check_functions ();
11289 output_to "src/guestfs_protocol.x" generate_xdr;
11290 output_to "src/guestfs-structs.h" generate_structs_h;
11291 output_to "src/guestfs-actions.h" generate_actions_h;
11292 output_to "src/guestfs-internal-actions.h" generate_internal_actions_h;
11293 output_to "src/guestfs-actions.c" generate_client_actions;
11294 output_to "src/guestfs-bindtests.c" generate_bindtests;
11295 output_to "src/guestfs-structs.pod" generate_structs_pod;
11296 output_to "src/guestfs-actions.pod" generate_actions_pod;
11297 output_to "src/guestfs-availability.pod" generate_availability_pod;
11298 output_to "src/MAX_PROC_NR" generate_max_proc_nr;
11299 output_to "src/libguestfs.syms" generate_linker_script;
11300 output_to "daemon/actions.h" generate_daemon_actions_h;
11301 output_to "daemon/stubs.c" generate_daemon_actions;
11302 output_to "daemon/names.c" generate_daemon_names;
11303 output_to "daemon/optgroups.c" generate_daemon_optgroups_c;
11304 output_to "daemon/optgroups.h" generate_daemon_optgroups_h;
11305 output_to "capitests/tests.c" generate_tests;
11306 output_to "fish/cmds.c" generate_fish_cmds;
11307 output_to "fish/completion.c" generate_fish_completion;
11308 output_to "fish/guestfish-actions.pod" generate_fish_actions_pod;
11309 output_to "ocaml/guestfs.mli" generate_ocaml_mli;
11310 output_to "ocaml/guestfs.ml" generate_ocaml_ml;
11311 output_to "ocaml/guestfs_c_actions.c" generate_ocaml_c;
11312 output_to "ocaml/bindtests.ml" generate_ocaml_bindtests;
11313 output_to "ocaml/guestfs_inspector.mli" generate_ocaml_inspector_mli;
11314 output_to "ocaml/guestfs_inspector.ml" generate_ocaml_inspector_ml;
11315 output_to "perl/Guestfs.xs" generate_perl_xs;
11316 output_to "perl/lib/Sys/Guestfs.pm" generate_perl_pm;
11317 output_to "perl/bindtests.pl" generate_perl_bindtests;
11318 output_to "python/guestfs-py.c" generate_python_c;
11319 output_to "python/guestfs.py" generate_python_py;
11320 output_to "python/bindtests.py" generate_python_bindtests;
11321 output_to "ruby/ext/guestfs/_guestfs.c" generate_ruby_c;
11322 output_to "ruby/bindtests.rb" generate_ruby_bindtests;
11323 output_to "java/com/redhat/et/libguestfs/GuestFS.java" generate_java_java;
11327 let cols = cols_of_struct typ in
11328 let filename = sprintf "java/com/redhat/et/libguestfs/%s.java" jtyp in
11329 output_to filename (generate_java_struct jtyp cols);
11332 output_to "java/Makefile.inc" generate_java_makefile_inc;
11333 output_to "java/com_redhat_et_libguestfs_GuestFS.c" generate_java_c;
11334 output_to "java/Bindtests.java" generate_java_bindtests;
11335 output_to "haskell/Guestfs.hs" generate_haskell_hs;
11336 output_to "haskell/Bindtests.hs" generate_haskell_bindtests;
11337 output_to "csharp/Libguestfs.cs" generate_csharp;
11339 (* Always generate this file last, and unconditionally. It's used
11340 * by the Makefile to know when we must re-run the generator.
11342 let chan = open_out "src/stamp-generator" in
11343 fprintf chan "1\n";
11346 printf "generated %d lines of code\n" !lines